Secondary radar SuperMode inquiry coding implementation method
A technology of secondary radar and its implementation method, which is applied in the directions of radio wave reflection/re-radiation, utilization of re-radiation, and measurement devices, etc., which can solve the problems of reduced recognition performance and recognition efficiency, inability to guarantee effective target recognition, and reduced detection probability of equipment, etc. problems, to achieve the effect of improving combat skill indicators, improving reliability and identification efficiency
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Embodiment 1
[0046] Aiming at the problems of reduced recognition probability and low reliability in the existing secondary radar detection process in which multiple different types of modes are used for interrogation, this embodiment optimizes and improves to solve this technical problem.
[0047] Specifically, such as figure 1 As shown, this embodiment provides a method for implementing secondary radar SuperMode query encoding, including the following process:
[0048] S1: Generate a synchronous pulse signal, the synchronous pulse signal is a TRIG pulse;
[0049] S2: Generate SuperMode encoding timing, embed any two of S mode, SIF mode, M4 and M5 into the same inquiry cycle to determine the SuperMode inquiry mode, set the time interval between the inquiry encoding pulses of two different modes, and ensure The response signal triggered by the query code of the former mode is located after the query code of the latter mode; in this embodiment, the SIF mode is one of M1, M2, M3 / A and MC; ...
Embodiment 2
[0101] This embodiment provides a secondary radar SuperMode interrogation coding implementation method, refined, using S mode + SIF mode in the pulse signal of the interrogation mode, which can quickly obtain the S mode and SIF mode of different targets within the working beam range Respond to information, complete target identification efficiently, and maximize the length of each mode window.
[0102] Specifically, such as image 3 As shown, when using the interrogation mode composed of two kinds of encoding pulses of S mode + SIF mode, the encoding pulse of SIF mode lags behind the encoding pulse of S mode; and also includes the zero-distance starting pulse sequence, and the zero-distance starting pulse lags Synchronous inversion pulse of the encode pulse.
[0103] In this embodiment, it has the following timing relationship:
[0104] a) T1 is the delay of the coding sequence and the system synchronization signal, which is 10us in this embodiment;
[0105] b) When SIF inq...
Embodiment 3
[0111] This embodiment provides a secondary radar SuperMode inquiry coding implementation method, refined, the M4+SIF mode is used in the pulse signal of the inquiry mode, and the M4 and SIF mode response information of different targets can be quickly obtained within the working beam range , complete target recognition efficiently, and maximize the length of each mode window.
[0112] Specifically, such as Figure 4 As shown, when the interrogation mode composed of two encoding pulses of M4+SIF mode is used, the encoding pulse of SIF mode lags behind the encoding pulse of M4; ahead of the SIF-mode encoding pulse; and a sequence of zero-distance start pulses lagging behind the SIF-mode encoding pulse.
[0113] In this embodiment, it has the following timing relationship:
[0114] a) T1 is the time delay of encoding timing and system synchronization signal, which is 10us in the present invention;
[0115] b) When the SIF mode query is embedded in the M4 query, when the M4 qu...
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