Secondary radar equipment and signal processing method
A signal and signal decoding technology, applied in the field of signal processing, can solve the problems of unreliable parameters, limited number of de-interleaving, jitter, etc., to achieve the effect of improving accuracy and stability, and improving detection ability
Active Publication Date: 2021-12-28
SICHUAN JIUZHOU ELECTRIC GROUP
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Problems solved by technology
The main problems of this method are: for a channel with a very high signal density, only one channel for signal decoding cannot fully filter the interference pulses appearing in the information coded bits; at the same time, only performing amplitude consistency detection will lead to The signals cannot be effectively separated; and, although the decoded output P1 pulse is a reference signal, due to errors in the receiver's measurement of the amplitude and azimuth parameters, it is not reliable to use only the parameter value of the P1 pulse as the parameter of the entire decoded signal , which may cause large jitter in the signal amplitude and azimuth displayed by the terminal; in addition, when dealing with multiple de-interleaving signals, not only the algorithm is complicated, but the number of de-interleaving is also relatively limited
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[0021] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
[0022] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.
[0023] The signal processing method according to an...
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The invention relates to secondary radar equipment and a signal processing method. The present invention provides a signal decoding method using multiple channel sorting, including: according to the amplitude and orientation of the signal, the signal is distributed to N channels according to a predetermined sorting strategy, where N is greater than or equal to a positive integer of 2; and decoding the signals distributed to each of the N channels respectively.
Description
technical field [0001] The invention relates to the field of signal processing, in particular to a signal decoding method utilizing multiple channel sorting and secondary radar equipment. Background technique [0002] With the development of aviation technology, MARKXII series secondary radar and S-mode secondary radar (SSR) equipment have been widely popularized and widely used in military and civil aviation fields. Secondary radar can ensure reliable communication and identification between the inquiring end and the responding end through repeated inquiries or information verification, while passive reconnaissance equipment based on secondary radar cannot detect The received information can be verified or corrected, and repeated communication cannot be requested. The above-mentioned difficulties make it difficult to ensure the accuracy of information acquired for passive reconnaissance based on secondary radar signals. Especially in a complex electromagnetic environment,...
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IPC IPC(8): G01S13/76
CPCG01S13/76
Inventor 甄体智刘建先登飞颜伏虎
Owner SICHUAN JIUZHOU ELECTRIC GROUP