Radar signal generation method, device and radar
A radar signal and analog signal technology, applied in the field of radar, can solve the problem of high cost of radar
Active Publication Date: 2021-07-20
BYD CO LTD
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- Description
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- Application Information
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Problems solved by technology
[0004] For this reason, the first purpose of the present invention is to propose a radar signal generation method for solving the problem of high radar cost in the prior art
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Embodiment Construction
[0079] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0080] The radar signal generation method, device and radar according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0081] figure 1 It is a schematic flowchart of a method for generating a radar signal provided by an embodiment of the present invention. Such as figure 1 As shown, the radar signal generation method includes the following steps:
[0082] S101. Obtain the analog signal to be scanned and the corresponding list; the frequency of the analog signal ...
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The present invention proposes a radar signal generation method, device and radar, wherein the method includes: obtaining an analog signal to be scanned and a corresponding list; the analog signal to be scanned changes with time within a preset time period, and the frequency changes from the first frequency to Gradually increase to the second frequency, and the frequency and voltage of the analog signal to be scanned correspond one-to-one; each voltage and frequency from the initial voltage to the end voltage is saved in the list; frequency capture is performed on the analog signal to be scanned, and the corresponding initial voltage is judged Whether the frequency is consistent with the initial frequency; if the frequency corresponding to the initial voltage in the analog signal to be scanned is consistent with the initial frequency, then the analog signal to be scanned is scanned to obtain the part of the analog signal to be scanned from the initial voltage to the end voltage; Part of the analog signal to be scanned is determined as a radar signal, so that the generation of the radar signal can be realized through software, and the generation of the radar signal by hardware circuits such as the PLL phase-locked loop is avoided, thereby reducing the cost of the radar.
Description
technical field [0001] The invention relates to the technical field of radar, in particular to a radar signal generation method, device and radar. Background technique [0002] The current radar is an all-digital radar signal source, including a clock buffer circuit, a digital phase-locked loop PLL, a direct digital frequency synthesizer, a switch amplifier filter circuit, an optocoupler isolation circuit, an interface circuit, and a control circuit; the input end of the clock buffer circuit and The crystal oscillator is connected, and the output end is connected with the input end and the control circuit of the digital phase-locked loop; the input end of the direct digital frequency synthesizer is connected with the output end of the digital phase-locked loop, and the output end is connected with the input end of the switch amplifier filter circuit; The optocoupler isolation circuit is respectively connected with the clock buffer circuit, the digital phase-locked loop, the ...
Claims
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IPC IPC(8): G01S7/02
CPCG01S7/02
Inventor 段小河
Owner BYD CO LTD