Method, device and electronic equipment for acquiring quadrature polyphase encoding waveform
A polyphase encoding and acquisition method technology, which is applied in the fields of orthogonal polyphase encoding waveform acquisition, devices and electronic equipment, can solve the problems of saving long search time and large number of repetitions, avoiding ambiguity of target distance, reducing the number of repetitions, The effect of improving feasibility
Active Publication Date: 2022-01-28
BEIJING INST OF RADIO MEASUREMENT
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The above process has a large number of repetitions and saves a long search time
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[0032] In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0033] figure 1 A method for acquiring quadrature polyphase encoded waveforms provided by an embodiment of the present invention includes;
[0034] S1, determine the pulse width τ, the number of pulse coherent accumulation I, and the number of symbols K r , symbol phase selection value and pulse repetition period PRT, set up a pulse repetition period group; or, determine pulse width τ,...
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The invention relates to a method for acquiring an orthogonal multiphase encoding waveform and electronic equipment. The present invention provides a method for obtaining an orthogonal multiphase encoding waveform, which includes determining the pulse width, the number of pulse coherent accumulations, the number of symbols, the selection value of the symbol phase and the pulse repetition period, and establishing a pulse repetition period group; or, determining The pulse width, the number of pulse coherent accumulations, the number of symbols, the selection value of the symbol phase and the pulse repetition frequency range are used to establish a pulse repetition frequency group; according to the pulse repetition period group / the pulse repetition frequency group, the radar distance ‑The weighted sum of the velocity occlusion area minimization function, the waveform normalized autocorrelation sidelobe peak minimization function and the cross-correlation peak minimization function is used as an objective function; the objective function is solved to obtain an orthogonal multiphase encoded waveform. The present invention also provides an electronic device, including the above-mentioned method for acquiring quadrature multi-phase encoded waveforms. The invention solves the problems of slow solution speed and large repetition frequency of MPRF-PD waveform.
Description
technical field [0001] The present invention relates to the technical field, in particular to a method, device and electronic equipment for acquiring quadrature multiphase encoding waveforms. Background technique [0002] The medium repetition frequency (medium pulse repetition frequency, MPRF) pulse Doppler (pulseDoppler, PD) waveform has a good clutter suppression effect, which can effectively reduce the degree to which the detection performance of the ground low-altitude surveillance radar is affected by the environmental clutter, while the MPRF-PD The waveform has the shortcomings of two-dimensional ambiguity and occlusion of distance and velocity, so the method of joint detection of multiple frequency groups must be used to defuzzify, so as to obtain the orthogonal multi-phase encoded waveform. The above process has a large number of repetitions and saves a long search time. Contents of the invention [0003] In order to solve the above-mentioned technical problems, ...
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IPC IPC(8): G01S7/292G01S7/28G01S7/295
CPCG01S7/2923G01S7/2813G01S7/295
Inventor 张养瑞田永华常振春
Owner BEIJING INST OF RADIO MEASUREMENT