How RADAR "micro-motion" detection "espionage" device "hears" through walls using microwave RF. “We Can Hear You with Wi-Fi!”, Index Terms—Wi-Fi RADAR, Micro-motion Detection, Moving Pattern Recognition, Interference Cancellation
https://people.eecs.berkeley.edu/~guanhua/paper/07384744.pdf
It is rare when through-wall RADAR ‘slightest of motion’, speed detector technology mentions “lip reading”, in the same breath as the ability to detect a person’s heartbeat or be able to measure breath rate by detecting the motion of a person's chest heaving; pick up leg, hand and arm motion for gesture and gait recognition; pick up eye motion with gaze tracking recognition - through multiple walls – from a great stand-off range. (By the way, these are our individual and unique bio-identifiers.) This is an older white paper presented by Russian scientists at a conference, where all three bodily functions are mentioned in one article: Progress in Electromagnetic Research Symposium 2004, Pisa, Italy, March 28 - 31, 2004
Detection of Human Breathing and Heartbeat by Remote RADAR – Remote Sensing Laboratory, R&D Institute of Applied Mathematics and Mechanics, Bauman Moscow State Technical University, Russia http://rslab.ru/downloads/piers2004_68_03.pdf
ABSTRACT
The RADAR capable to detect and perform diagnostics of a state of the human being behind obstacles and in conditions of bad visibility could be used for the manifold applications. The potential consumers of the RADAR are: rescue services, antiterrorist detachments and law-enforcement bodies. It is possible also to use this device in medicine. In this paper, the experiments with using of continuous-wave subsurface RADAR are described. The recorded oscillograms and their frequency spectrums for heartbeat, respiration and articulation of a man, which is taking place behind an obstacle (wall), are presented.
INTRODUCTION
For long time, RADARs intended for sounding of opaque mediums were developed for detection of motionless objects, as a rule, in the ground. It is accepted in the scientific literature to name such RADARs by surface-penetrating RADAR. The main fields of the surface-penetrating RADARs applications are much wider now:
– Ground sounding for inspection of subsurface communications (pipes, cables etc.)
– Detection of mines and unexploded ordnances (UXO)
– Sounding of building designs for detection of built-in details, defects and latent objects(for example, overhearing devices)
– Detection of the material evidence in criminalistics.
The main applications of vibro-electromagnetic sounding could be:
– Detection of live human persons under rubles of buildings that have been suffered from natural disasters, technical calamities or accidents. The urgency of task is defined by necessity for rescuers to begin dismantling of rubles and debris in the places, where is a hope to find out the alive people.
– Detection of the people and parameters of their moving inside of buildings during antiterrorist operations
– Remote diagnostics of psychological condition of the persons during the latent or open checks, for example, at the airports (remote lie detector)
– Contactless measurement of parameters of heartbeat and breath for the patients, when the contact sensor for some reasons cannot be used.
– The further researches should show: could this method be also used for the recognition of speech and articulation behind obstacles without using of acoustics devices.
Traditional surface-penetrating RADARs are usual region of engineering and the time-domain impulse subsurface RADARs are being produced in lots by many countries (the USA, Canada, Russia and so on).
There is now keen interest to use of methods and equipment of surface-penetrating RADARs for detection and diagnostics of the live persons, which are taking place under rubble or behind walls of buildings. This task could be solved by RADARs that operate in the wavelength range of 3 - 30 cm (frequencies correspond to 1 - 10 GHz). In this case, by subtraction of signals reflected from motionless objects it is possible to achieve high sensitivity at detection of objects, borders of which are subjected to mechanical fluctuations. According to estimation available in the literature, the sensitivity of the method could achieve 10-9#ɦ. Let's name the method as vibro-electromagnetic sounding. Though the objects subjected to mechanical fluctuations could have a various nature, in the present research we are limited only to detection and diagnostics of a live person.
Objects in man’s body that are subjected more or less periodic fluctuations are cardiac muscle and lungs. Their reductions have frequencies in range of 0.8 – 2.5 Hz for heart and 0.2 – 0.5 Hz for lungs. Physical activity and medical state of the examinee determines the values of these frequencies. The remote or contactless measurement of breathing and pulse rates of the man behind an obstacle or in open space at some distance is the basic task of this experimental research.
The task may be solved under condition of creation of enough sensitive RADAR and development of selection algorithms of background reflections that can mask a valid signal. Last circumstance is a major factor constraining application of vibro-electromagnetic sounding for practical using.
Background signals could be connected with reflections from the operator carrying out researches or other people, which are taking place in a zone of measurements. Besides that, working machines and mechanisms, vibrations of foliage and branches of trees, animal and other mobile objects can create interferences and noises also. This requires creation of the antenna with the minimal side and backlobe of the directional pattern or development of methods of their removal.
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RADAR is microwave RF and RADAR is the only technology that can ‘search’, ‘locate’, ‘lock onto’ and then ‘track and follow’ a selected target, apparently all over the world. When the power density is increased, the pulsed microwave radiofrequency becomes a ‘directed energy’ (DEW), that causes hurt, burn, vibration and heating, resulting in necrosis or destruction of tissue.
LOCATION, MAPPING & TRACKING
TRX Systems - location, mapping and tracking solutions. TRX is the first company to use sensor fusion and dynamic mapping of structural, magnetic and RF features to pinpoint location behind walls and obstructions. https://www.trxsystems.com/about-trx.html
The FCC calls these devices radiolocators and intentional radiators.
My FOIA request: Complete list of all Doppler RADAR and/or pulsed RADAR, of all stepped-frequency, continuous-wave (CW) RADAR, of all ultra-wide band (UWB) RADAR and/or the combination of these intentional radiators and radiolocators.
https://www.muckrock.com/foi/united-states-of-america-10/complete-list-of-all-doppler-radar-andor-pulsed-radar-of-all-stepped-frequency-continuous-wave-cw-radar-of-all-ultra-wide-band-uwb-radar-andor-the-combination-of-these-intentional-radiators-and-radiolocators-29786/
Scroll to bottom of FOIA for FCC’s response spreadsheet of 379 UWB RF devices and frequency ranges licensed.

posted by Helena Csorba rfhurtslife@gmail.com