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Note: I added some points of clarification in brackets [] to make the excerpts clearer.
1 posted on 06/11/2019 4:47:06 AM PDT by RoosterRedux
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To: PIF

Hat tip to Freeper PIF for his great work re: this developing story.


2 posted on 06/11/2019 4:47:56 AM PDT by RoosterRedux
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To: RoosterRedux; PIF; Chode; Squantos; All

Good Morning All TicTac Hunters. Thank You for the Post. Now I’m off to read the Article.


3 posted on 06/11/2019 4:52:49 AM PDT by mabarker1 (Congress- the opposite of PROGRESS!!!)
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To: RoosterRedux
Daily occurrence? Only thought is to avoid hitting them? Sorry I have to call BS on this story.
4 posted on 06/11/2019 4:55:29 AM PDT by precisionshootist
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To: RoosterRedux
...I do distinctly remember seeing radar contacts that were very similar, if not the same, but again, significantly reduced in volume and inconclusive.

As someone with more than a passing familiarity and interest in the topic, I *know* radars generate false tracks - routinely. How many, how often, and the nature or characteristics of these false tracks depends on how well calibrated and tuned the system is, as well as some fundamental properties of the radar and computer/software controlling it.

Sounds to me like he, and potentially others in his unit had a very poorly maintained radar in his/their aircraft. If radar contact is all he has - no visual contact, contrails, etc. - then I'm going to strongly believe this was a maintenance issue rather than an encounter.

6 posted on 06/11/2019 5:05:09 AM PDT by ThunderSleeps ( Be ready!)
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To: RoosterRedux

This program seems to be dominated by former and retired Skunkworks people who appear to be driving the story. That is a red flag for me. The program developer is convincing but he could also be getting played. We’ll see.


9 posted on 06/11/2019 5:14:44 AM PDT by excalibur21
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To: RoosterRedux

the “best” data about “UFO’s” would be analog imaging-film-backed with corroborative radar signaling.

Haven’t EVER heard of any such data....


15 posted on 06/11/2019 5:53:28 AM PDT by mo ("If you understand, no explanation is needed; if you don't understand, no explanation is possible")
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To: RoosterRedux
It must be noted that most, if not all, all of these "UFO contacts" in the story are from radar. It must be noted that a radar signal returns a very significant amount of "clutter". There are complex, very sophisticated methods of removing much of the clutter while giving the pilots the information they require. So-called 'new' radar systems generally involve even more sophisticated transmission and data processing techniques. One cannot rule out that the discussed targets are artifacts of the clutter, and not real aircraft. Of course, the most difficult part of the processing is to remove the 'clutter', without removing the target.

For context, and to show some of the complexity, I'm copying a couple of paragraphs that discuss data processing from the Wikipedia article on radar. One of the most significant sentences in this is "Reflections from terrain, water, and weather produce signals much larger than aircraft and missiles."

From Wikipedia:

Pulse-Doppler signal processing includes frequency filtering in the detection process. The space between each transmit pulse is divided into range cells or range gates. Each cell is filtered independently much like the process used by a spectrum analyzer to produce the display showing different frequencies. Each different distance produces a different spectrum. These spectra are used to perform the detection process. This is required to achieve acceptable performance in hostile environments involving weather, terrain, and electronic countermeasures.

The primary purpose is to measure both the amplitude and frequency of the aggregate reflected signal from multiple distances. This is used with weather radar to measure radial wind velocity and precipitation rate in each different volume of air. This is linked with computing systems to produce a real-time electronic weather map. Aircraft safety depends upon continuous access to accurate weather radar information that is used to prevent injuries and accidents. Weather radar uses a low PRF. Coherency requirements are not as strict as those for military systems because individual signals ordinarily do not need to be separated. Less sophisticated filtering is required, and range ambiguity processing is not normally needed with weather radar in comparison with military radar intended to track air vehicles.

The alternate purpose is "look-down/shoot-down" capability required to improve military air combat survivability. Pulse-Doppler is also used for ground based surveillance radar required to defend personnel and vehicles.[38][39] Pulse-Doppler signal processing increases the maximum detection distance using less radiation in close proximity to aircraft pilots, shipboard personnel, infantry, and artillery. Reflections from terrain, water, and weather produce signals much larger than aircraft and missiles, which allows fast moving vehicles to hide using nap-of-the-earth flying techniques and stealth technology to avoid detection until an attack vehicle is too close to destroy. Pulse-Doppler signal processing incorporates more sophisticated electronic filtering that safely eliminates this kind of weakness. This requires the use of medium pulse-repetition frequency with phase coherent hardware that has a large dynamic range. Military applications require medium PRF which prevents range from being determined directly, and range ambiguity resolution processing is required to identify the true range of all reflected signals. Radial movement is usually linked with Doppler frequency to produce a lock signal that cannot be produced by radar jamming signals. Pulse-Doppler signal processing also produces audible signals that can be used for threat identification.[38]

Reduction of interference effects[edit]

Signal processing is employed in radar systems to reduce the radar interference effects. Signal processing techniques include moving target indication, Pulse-Doppler signal processing, moving target detection processors, correlation with secondary surveillance radar targets, space-time adaptive processing, and track-before-detect. Constant false alarm rate and digital terrain model processing are also used in clutter environments.

Plot and track extraction[edit]

Main article: Track algorithm

A Track algorithm is a radar performance enhancement strategy. Tracking algorithms provide the ability to predict future position of multiple moving objects based on the history of the individual positions being reported by sensor systems.

Historical information is accumulated and used to predict future position for use with air traffic control, threat estimation, combat system doctrine, gun aiming, and missile guidance. Position data is accumulated by radar sensors over the span of a few minutes.

There are four common track algorithms.[40]

Nearest neighbour algorithm
Probabilistic Data Association
Multiple Hypothesis Tracking
Interactive Multiple Model (IMM)

Radar video returns from aircraft can be subjected to a plot extraction process whereby spurious and interfering signals are discarded. A sequence of target returns can be monitored through a device known as a plot extractor.

The non-relevant real time returns can be removed from the displayed information and a single plot displayed. In some radar systems, or alternatively in the command and control system to which the radar is connected, a radar tracker is used to associate the sequence of plots belonging to individual targets and estimate the targets' headings and speeds. End Wikipedia.

21 posted on 06/11/2019 6:31:52 AM PDT by norwaypinesavage (Calm down and enjoy the ride, great things are happening for our country)
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To: RoosterRedux

So the aliens have mastered warp drive but not stealth?


28 posted on 06/11/2019 7:32:13 AM PDT by NonValueAdded (#Dregs #DeplorableMe #BitterClinger #HillNO! #cishet #MyPresident #MAGA #Winning #covfefe #BuildIt)
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To: RoosterRedux

4ltr


38 posted on 06/11/2019 9:57:51 AM PDT by JDoutrider
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To: RoosterRedux

Your link has been removed by the Men In Black.


40 posted on 06/11/2019 10:13:43 AM PDT by MeganC (There is nothing feminine about feminism.)
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To: RoosterRedux

Your link doesn’t work


42 posted on 06/11/2019 10:47:43 AM PDT by Hot Tabasco (I'm in the cleaning business.......I launder money)
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To: RoosterRedux

UFO’s seem to be the grand end times deception topic.


57 posted on 06/11/2019 3:14:42 PM PDT by Roman_War_Criminal (Like Enoch, Noah, & Lot, the True Church will soon be removed & then destruction comes forth.)
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To: RoosterRedux

“Tic-Tac” Tracker.


63 posted on 06/11/2019 4:41:41 PM PDT by Big Red Badger (Despised by the Despicable!)
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To: RoosterRedux

What are the odds makers in Vegas offering? Why don’t all the believers get rich?


66 posted on 06/11/2019 5:13:22 PM PDT by Born to Conserve
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