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US 10,310,066 B1Granted
Indirect passive radar detection method and system
AssigneeSaze Technologies, LLC
InventorsMichael Zatman, Max Scharrenbroich, Jason Eicke
Life of this patent
Estimating the term…
Abstract
An indirect passive radar method and system utilizing information obtained from a non-direct source and reflected signals from an object to be identified to determine information associated with the object to be identified, such as speed, location, shaped, distance and so forth.
Claims16
An indirect passive radar method comprising the steps:
- providing a receiver, having a passive radar processor operatively connected thereto;
- receiving, at the receiver, a reflected signal from a target object using a receiver at a receiving location that does not have a direct over-the-air line of sight position with a transmitter emitting an original signal transmission, the reflected signal resulting from the original signal transmission being emitted from the transmitter that is subsequently reflected from the target object;
- accessing and obtaining reference signal information about the original signal transmission from an alternative means other than by a direct over-the-air transmission or connection from the transmitter to the receiver;
- comparing the reflected signal to the reference signal information;
- calculating, utilizing the passive radar processor, at least one of the following:
- a range, location, speed, shape or other property of the target object based in part on the comparison of the reflected signal to the reference signal information.
3 more elements
An indirect passive radar system comprising:
- a receiver having at least one antenna positioned only to receive a reflected transmission, the reflected transmission having been originally omitted in an original form from a third-party transmitter, wherein the reflected transmission represents a variant of the original form which has been reflected of off a target object thus forming the reflected transmission;
- a transmission database containing reference signal information relating to the original form of the reflected transmission, the transmission database being provided separately from the emitter and the receiver;
- a processing unit, the processing unit being operatively connected to the receiver, the processing unit being configured to receive, indirectly from the third-party transmitter, information from the transmission database and reference signal information relating to the original form of the reflected transmission as contained in the transmission database;
- and
- wherein the processing unit uses the transmission database and reference signal information to generate a filter that is applied to the reflected transmission from the target object.
2 more elements
An indirect passive radar method comprising the steps:
- providing a receiver, having a passive radar processor operatively connected thereto;
- receiving, at the receiver, a reflected signal being reflected off a target object using a receiver at a receiving location, an original signal transmission being emitted from a transmitter, reflected off the target, thus resulting in the reflected signal;
- accessing a transmission database containing reference signal information relating to the original form of the reflected signal, the transmission database being provided separately from the emitter and the receiver;
- obtaining reference signal information from the transmission database, the reference signal information being obtained indirectly from the third-party transmitter, the reference signal information comprising information regarding the original form of the reflected signal;
- comparing the reflected signal to the reference signal information;
- calculating, utilizing the passive radar processor, at least one of the following:
- a range, location, speed, shape or other property of the target based in part on the comparison of the reflected signal to the reference signal information.
4 more elements
Dependencies are inferred from the claim text.