Toa Estimation Method for Roland C Passive Radar Based on Total Variation and Compressed Sensing
A passive radar and compressive sensing technology, applied in measurement devices, instruments, radio wave measurement systems, etc., can solve problems such as the inaccurate number of Roland C source estimates, the inability to obtain the effect of time-of-arrival estimation, and the arrival time of false targets.
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[0062] The present invention will be further described below in conjunction with accompanying drawing:
[0063] refer to figure 1 , is a schematic diagram of an application scenario of the present invention. In this application scenario, it includes the Loran C launch pad, the target to be detected, the ionosphere, and passive radar. The signals received by the passive radar include the Loran-C direct wave signal, the Loran-C sky-wave signal (signal emitted through the ionosphere), and the Loran-C target echo signal. The Roland C transmitter station 1 transmits signals outward, uses the main antenna 3 of the passive radar to receive the Roland C direct wave signal, the Roland C sky wave signal, and the Loran C target echo signal, and uses the passive radar's auxiliary antenna 4 to receive the Roland C direct wave signal , and Roland C sky-wave signals, in figure 1 Among them, 2 represents the target.
[0064] refer to figure 2 , is a flow chart of the Loran C passive rad...
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