Radio frequency signal acquisition and source location system
First Claim
1. A method for radio frequency signal acquisition and source location, comprising steps of:
- steering, via an electronic steering circuit, an interrogation signal through a sweep pattern of a zone;
recording a data record of each of a signal identification, a received signal strength indicator and an RF signal direction along which respective response signal(s) are received, the RF signal direction derived from the electronic steering circuit;
performing a discrimination logic operation upon the data record(s) to filter the data record(s) between an actual signal(s) and a ghost signal(s);
applying of a probability weighting factor to the actual signal(s) and the ghost signal(s) during the discrimination logic operation, then filtering for the actual signal(s) according to a value of the probability weighting factor; and
performing a position logic operation with the RF signal direction and the received signal strength indicator as inputs to derive a first three dimensional signal origin location within the zone of each of the response signal(s).
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Accused Products
Abstract
A radio frequency signal acquisition and source location system, including a first signal acquisition and source location module comprising an RF transceiver coupled to an antenna, the antenna provided with a electronic steering circuit. The antenna operative to launch an interrogation signal, the interrogation signal steerable by an electronic steering circuit. A processor operatively coupled to the RF transceiver and the electronic steering circuit, the processor provided with a data storage for storing a signal data record for each of at least one response signal(s) received by the RF transceiver(s). The signal data record including a signal identification, a received signal strength indicator and an RF signal direction along which respective signal(s) are received by the antenna, the RF signal direction derived from the electronic steering circuit. A position logic operative upon the data record(s) deriving a three dimensional signal origin location of each response signal.
77 Citations
15 Claims
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1. A method for radio frequency signal acquisition and source location, comprising steps of:
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steering, via an electronic steering circuit, an interrogation signal through a sweep pattern of a zone; recording a data record of each of a signal identification, a received signal strength indicator and an RF signal direction along which respective response signal(s) are received, the RF signal direction derived from the electronic steering circuit; performing a discrimination logic operation upon the data record(s) to filter the data record(s) between an actual signal(s) and a ghost signal(s); applying of a probability weighting factor to the actual signal(s) and the ghost signal(s) during the discrimination logic operation, then filtering for the actual signal(s) according to a value of the probability weighting factor; and performing a position logic operation with the RF signal direction and the received signal strength indicator as inputs to derive a first three dimensional signal origin location within the zone of each of the response signal(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification