Sabtu, 19 Januari 2019

The Way to a New Phased Array Radar Architecture (Beware of 5G technologies)

The Way to a New Phased Array Radar Architecture

15 January, 2018

Sponsored Article: Digital beamforming phased arrays are now common, and rapid proliferation is expected with a huge range of frequencies and architectures being developed from L-band through to W-band.

By Peter Delos, Analog Devices, Inc.
A large proliferation of digital beamforming phased array technology has emerged in recent years. The technology has been spawned by both military and commercial applications, along with the rapid advancements in RF integration at the component level. Although there is a lot of discussion of massive MIMO and automotive radar, it should not be forgotten that most of the recent radar development and beamforming R&D has been in the defense industry, and it is now being adapted for commercial applications.
While phased array and beamforming moved from R&D efforts to reality in the 2000s, a new wave of defense focused arrays are now expected, enabled by industrial technology offering solutions that were previously cost prohibitive. In classical phased arrays, the analog beamforming subsystem combines all the elements to centralized receiver channels. Every element in digital beamforming phased array has waveform generators and receivers behind every front-end module, and the analog beamforming layer is eliminated. In many systems today, some level of analog beamforming is common.
The waveform generator and receiver channels serve to convert digital data to the operating band RF frequencies. Digital beamforming is accomplished by first equalizing the channels, then applying phase shifts and amplitude weights to the ADC data, followed by a summation of the ADC data across the array. Many beams can be formed simultaneously, limited only by digital processing capability.
Analog Devices has solutions for every section of a beamforming system illustrated, and for both analog and digital beamforming architectures.

ANALOG VS. DIGITAL BEAMFORMING
The objective of a digital beamforming phased array is the simultaneous generation of many antenna patterns for a single set of receiver data. The Figure (right) shows the antenna patterns at an element, the combined elements in a subarray, and the beamformed data at the antenna level. The primary obstacle of the subarrayed approach is that beamformed data must be within the pattern of the subarray. With a single subarray, simultaneous patterns cannot be generated at widely different angles. It would be desirable to eliminate the analog beamformer and produce only digital beamforming system. With today’s technology, this is now possible at L- and S-band. At higher frequencies, size and power constraints often necessitate some level of analog beamforming.

Beamforming goes Digital

However, the quest remains to approach near elemental digital beamforming, which places significant demands on the waveform generators and receivers. While the beamforming challenges place demands on the waveform generators and receivers to reduce size and power, there is a simultaneous demand to increase bandwidth for most system applications.
These objectives work against each other, as increased bandwidth typically requires additional current and additional circuit complexity. Digital beamforming relies on the coherent addition of the distributed waveform generator and receiver channels. This places additional challenges on both synchronization of the many channels and system allocations of noise contributions.

New Technologies Needed

The superheterodyne approach, which has been around for a 100 years now, provides exceptional performance. Unfortunately, it is also the most complicated. It typically requires the most power and the largest physical footprint relative to the available bandwidth, and frequency planning can be quite challenging at large fractional bandwidths. The direct sampling approach has long been sought after, the obstacles being operating the converters at speeds commensurate with direct RF sampling and achieving large input bandwidth.
Today, converters are available for direct sampling in higher Nyquist bands at both L- and S-band. In addition, advances are continuing with C-band sampling soon to be practical, and X-band sampling to follow. Direct conversion architectures provide the most efficient use of the data converter bandwidth. The data converters operate in the first Nyquist, where performance is optimum and low-pass filtering is easier. The two data converters work together sampling I/Q signals, thus increasing the user bandwidth without the challenges of interleaving.
The dominant challenge that has plagued the direct conversion architecture for years has been to maintain I/Q balance for acceptable levels of image rejection, LO leakage, and DC offsets. In recent years, the advanced integration of the entire direct conversion signal chain, combined with digital calibrations, has overcome these challenges, and the direct conversion architecture is well positioned to be a very practical approach in many systems. The future will bring increased bandwidth and lower power, while maintaining high levels of performance, and integrating complete signal chains in system on chips (SoC), or system in packages (SiP) solutions.

Digital Data Converter

Data converter analog performance will continue to improve and these improvements at the analog level will include increased sampling rates for wider bandwidth, increased channel count, and maintaining the key performance metrics of noise, density, and linearity. These benefits will drive all of the RF signal chain solutions described, aiding new phased array solutions. An area of increased importance at the system level is the recent addition of many digital functions (as shown in the Figure below) that can be used to offload FPGA processing and help the overall system.


source:
[1]Delos, Peter. “The Way to a New Phased Array Radar Architecture.” TechTime: Electronics & Technology News. January 15, 2018. Accessed January 1, 2019. https://techtime.news/2018/01/ 15/analog-devices-phased-array-radar/. “Although there is a lot of discussion of massive MIMO and automotive radar, it should not be forgotten that most of the recent radar development and beamforming R&D has been in the defense industry, and it is now being adapted for commercial applications. While phased array and beamforming moved from R&D efforts to reality in the 2000s, a new wave of defense focused arrays are now expected, enabled by industrial technology offering solutions that were previously cost prohibitive.”
[2] “Electrosensitive Testimonials.” We Are The Evidence. 2018. Accessed January 1, 2019. https://wearetheevidence.org/adults-who-developed-electro-sensitivity/. “WATE intends to expose the suppressed epidemic of sickness, suffering and human rights crisis created by wireless technology radiation; elevate the voice of those injured; defend and secure their rights and compel society and governments to take corrective actions and inform the public of the harm.”

[3] Glaser, Lt. Z. “Cumulated Index to the Bibliography of Reported Biological Phenomena (‘effects’) and Clinical Manifestations Attributed to Microwave and Radio-frequency Radiation: Report, Supplements (no. 1-9).” BEMS Newsletter B-1 through B-464 (1984). Accessed January 1, 2019. https://www.cellphonetaskforce.org/wp-content/uploads/2018/06/Zory-Glasers-index.pdf. Lt. Zorach Glaser, PhD, catalogued 5,083 studies, books and conference reports for the US Navy through 1981.
[4] “Space Sustainability: A Practical Guide.” Secure World Foundation, 2014, 21. Accessed January 1, 2019. https://swfound.org/media/206289/swf_space_sustainability-a_practical_guide_2018__1.pdf.

“However, as more countries integrate space into their national military capabilities and rely on space-based information for national security, there is an increased chance that any interference (either actual or perceived) with satellites could spark or escalate tensions and conflict in space or on Earth. This is made all the more difficult by the challenge of determining the exact cause of a satellite malfunction: whether it was due to a space weather event, impact by space debris, unintentional interference, or deliberate act of aggression.”
[5] “Space Law: Liability for Space Debris.” Panish, Shea & Boyle LLP. 2018. Accessed January 1, 2019. https://www.aviationdisasterlaw.com/liability-for-space-debris/. “Filing a lawsuit against SpaceX for space debris is a little different than one against the commercial industry or state-sponsored launch. Since SpaceX is a private company, injured parties can file claims directly against the establishment in accord with the state’s personal injury laws. For the claim to be successful, the plaintiff will have to prove that SpaceX was negligent in some way that caused the space debris collision. Space law is notoriously complex, making it very difficult for injured parties to recover for [sic] their damages in California.”

Kamis, 17 Januari 2019

The Red Heifer “Prophecy” vs. the Real Third Temple Requirement/Sign

The Red Heifer “Prophecy” vs. the Real Third Temple Requirement/Sign


Is the birth of a "red heifer" a sign or even an end time prerequisite? The Book of Numbers says that the ashes of a red heifer are required for the cleansing of the Levitical priesthood for Temple service. Given the prophecies about an end time Temple that needs cleansed priests, some Christians therefore herald each birth of a red heifer as an end time sign or precursor to the Third Temple and its altar. Find out what those saying this may be overlooking and also the surprising fine print about the 2018 red cow.


Red Heifer Born in Israel! (Again...)


If you follow Christian "prophecy news" sites or YouTube channels, you'll eventually hear about a "red heifer prophecy." It is accompanied by claims like:

  • "A BIBLE prophecy predicting the end of days is feared to come true after the first ‘red heifer in 2,000 years’ was born in Israel."
  • "We're waiting for the birth of a red heifer before the Third Temple appears..."
  • "The birth of a red heifer is an end time sign..."

In August 2018, this prophecy came around again when it was announced by the Temple Institute in Jerusalem that a red heifer was born that passed inspection by the rabbis. According to Numbers 19, a red heifer is needed to produce ashes for cleansing the Levites for Temple service.

This red heifer birth is significant because red heifers are indeed extremely rare. The rabbis say that there were only nine red heifers in history starting with the first one in Moses' day. In the last 2000 years there has not been a single one.

But that's not the end of the story as I'll explain next.

Two Reasons This Is Not A "Sign"


Before you get too excited, you should know that this is not our first "red heifer rodeo" =). Since I started watching prophecy, two red heifers have been born: one in 1997 and another in 2002. Yet both were eventually disqualified by the rabbis after developing blemishes before they could be sacrificed and burnt into ashes. Those cows lucked out, and the same may happen to this one upon further rabbinic inspection:
Further, this 2018 red heifer is especially underwhelming as a "sign" when you read the fine print. Three years prior, the Temple Institute began a Raise a Red Heifer In Israel (לגדל פרה אדומה בארץ ישראל) program. They hoped to breed a perfect red cow using imported frozen embryos of red angus cows implanted into their domestic cows. 

Therefore, this is not quite a miracle or even a sign from God. For me, it's more like man trying to force things. I'm not saying it's wrong, rather it reminds me too much of how Abraham decided to "help" God out when he was told at nearly 100 years old that he would be the father of a great nation with his elderly wife Sarah. He took Sarah's advice of using her handmaid Hagar to produce offspring "on her knees" (where the Handmaid's Tale got the concept). That resulted in Ishmael, one of the fathers of the Arab peoples. Just as Ishmael was no sign or miracle but the outcome of human plotting, so it is with this "fertility clinic" produced cow.

As for it being a prerequisite, the Jews may not even need a red heifer as I'll explain below.

Red Heifer Requirements


First, let's understand what this is all about better. Numbers 19 details the instructions regarding the red heifer. In the red heifer's ashes is found the only antidote for ritual impurity from contact with a grave (and other related non-living things) (Num 19:11, 14, 16).  The Torah requires that the cow be without blemish (Num 19:2), just like any sacrifice to God (who doesn't want our rejects). Uniquely, it must have never been used to perform any physical labor (Num 19:2).

In addition to this, the Orthodox rabbis with their Oral Law tradition have invented other "halachic" requirements they believe in adhering to:

  • The heifer must be three years old and perfect in its redness. Even its hooves must be red.
  • It must also be totally free from any physical blemish or defect, whether internal or external. The presence of even two hairs of any other color will render it invalid.

Chicken and Egg Situation?


Significantly, Numbers 19 requires already clean priests and Levites (non-sons of Aaron who assist the priests with much of the grunt work) to perform the sacrifice (Num 19:3, 9). This means to produce the red heifer ashes, you need a high priest who does not need the purification of the ashes already!

This was not too hard a requirement for the successive high priests in Israel (such as Aaron's son Eleazor Num 19) since they probably had ashes from previous heifers to use in the preparation of the next sacrifice. They also had the benefit of an priesthood-friendly society they were raised in to protect them from defilement from the dead.

Today this is not so easy without any ashes from the last red heifer and a mostly secular society that does not know or care about ritual impurity and helping people stay ritually clean. To meet this challenge, the Jews have raised young people sequestered from any possible contact that would make them ritually impure. This goes so far as to keep them on rock-floored dwellings to ensure no one is buried below!

Original Red Heifer's Ashes Needed, Too?


Some raise the question that a new red heifer is not enough but the original red heifer ashes are needed, too (found in a container called the kelal). This is because one tradition says the original red heifer's ashes were always mixed with the each new one. Why? The Temple Institute comments:

Some opinions maintain that the newer ashes were always mixed together with a combination of the previous ashes. One way of understanding this, is to the view this mixture of old and new ashes as being yet another precautionary measure... actually, as a kind of insurance policy.

To this end there are groups today searching for the original ashes by following one of the Dead Sea Scrolls known as the Copper Scroll that purports to tell the location. But, again, this requirement is not found in the Torah itself. And according to the last article quoted above, this tradition has "has no basis in the reality of Biblical law or Jewish practice" even if the ashes could be found and proven to be authentic and uncontaminated.
But in the meantime, let the truth be known: there is nothing to stop the people of Israel from raising a new red heifer, from birth, and preparing it in the manner we have described in these pages, and raising children in purity to carry out the procedure - even without the original ashes. On the contrary: we may be in doubt as to the true nature of any discovery that is unearthed whose authenticity cannot be completely verified. But a perfect heifer, born and raised under a controlled environment, would be fit to be used for the Temple. And that is precisely what is being done today.

"Animal Sacrifices!?" = Crucifying Christ Again?

Just a short note here that I know to include for the animal lovers who are reading. I say this because every time I bring up animal sacrifices in prophecy, either before the Great Tribulation at the Third Temple or animal sacrifices in Millennial/Fourth Temple while Jesus reigns as king, I get confused and even angry responses from Christians. Most Christians have never heard of these prophecies or simply think God "would never allow such an affront to Christ to happen, recrucifying Christ" (Heb 6:6).
If this is you, I suggest you read the explanations in the links in the preceding paragraph. Or to remember that God has allowed far worse to happen already in history than animal sacrifices after Jesus' one sacrifice that covers intentional sin (which animal sacrifices never covered nor were intended to cover - Heb 10:4, 3). God will allow even worse than that in the future such as real monsters to be unleased upon the earth that torture people into taking the mark. Therefore, I'm sorry to say that whether Jewish animal sacrifices are right or wrong, and whether you like them or not, according to clear prophecies they are coming and God will allow them.

Summary and Conclusion

Perhaps by now you can understand why I didn't bat an eye nor did my heart flutter when I heard the news of the latest red heifer birth announcement.
For one, I know there is no "red heifer prophecy" of an end time red heifer as a sign or anything else. It's not directly required for end time events by any written prophecy.
Indirectly, it does seem to be required since there must be a cleansed Levitical priesthood as part of the Third Temple prophecies in Daniel and the NT. However, this can be resolved in three possible ways:
  1. The 2018 red heifer or a subsequent one will make it to three years old without blemish and be turned to ashes.
  2. The lost cache of the ashes of the last red heifer will be found. Yes, now that would seem to be a whole lot less likely to happen than #1, but it is not without precedent! The discovery of the Dead Sea Scrolls inside a lost cave by a Bedouin shepherd comes to mind.
  3. Lacking the ashes, but seeing a clear path to Temple construction after the removal of the Dome of the Rock in the Psalm 83 War, the Jews may just make up a another halachic decree that works around ash dilemma. They are very good at this!
If I had to guess, since God wants to encourage and facilitate the construction of the Third Temple for the Antichrist to deceive the world from, I suspect #1 is indeed what will happen. I'm just saying it's not required nor is this red heifer a sign because there is no end time prophecy about it and those two other possibilities exist to work things out with a new red heifer.
For me, the real sign that the Third Temple is coming soon will be after the required and prophesied Psalm 83 War happens. I think this war will result in either the accidental destruction or intentional demolition of the Dome of the Rock which stands over the place where the Jews think the First Temple and Holy of Holies stood. (Although certain Christian experts lately tell the Jews and anyone who will listen that they are wrong on that, you can be quite certain that the Jews don't care and will build the Third Temple where they think it should be! And not without some smoking gun evidence for it.)
When will that war come? Only God knows, but as I wrote earlier, I believe the 2018 US embassy move to Jerusalem has helped it along. Until then, who knows how many more red cows will be born and disqualified?
- Tim McHyde

P.S. "Wait, in the picture above the mother is red, too! Is she 2000 years old, then?"

No, but remember, it's not just enough to look as red as the calf in a grainy photo taken at what looks to be the red light of sunset. The mother would have to be completely red and without blemish, too. We don't hear about all the reddish cows that are immediately disqualified at birth like momma cow in the picture probably was. =)



source: Tim McHyde, https://escapeallthesethings.com/red-heifer/?awt_l=MP1qE&awt_m=JO_TrOaDMlxVB1

The Way to a New Phased Array Radar Architecture (Beware of 5G technologies)

The Way to a New Phased Array Radar Architecture 15 January, 2018 Sponsored Article: Digi...