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Millimeter-wave radar signal processing system and method

A millimeter-wave radar and signal processing technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of system complexity and high cost, and achieve the effect of reducing system complexity, low cost, and system cost

Inactive Publication Date: 2015-07-29
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problems of high cost and complex system in the existing millimeter-wave radar signal processing system, and propose a millimeter-wave radar signal processing system solution with low cost, high integration and simple implementation

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  • Millimeter-wave radar signal processing system and method
  • Millimeter-wave radar signal processing system and method

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Embodiment Construction

[0011] In order for those skilled in the art to better understand the technical solution of the present invention, a millimeter-wave radar signal processing system of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] A millimeter wave radar signal processing system includes DSP minimum system, DAC frequency modulation signal generation circuit, intermediate frequency processing circuit, CAN bus communication circuit for communicating with the whole vehicle, LED visual alarm circuit, BUZZER buzzer sound alarm circuit, see figure 1 shown.

[0013] DSP minimum system includes OSC clock circuit, JTAG debugging circuit, FLASH, SRAM storage circuit.

[0014] The DSP controls the 12-bit low-precision DAC digital-to-analog converter through the multi-channel buffered serial communication interface MCBSPB control circuit to generate a triangular wave modulation signal, which is filtered and amp...

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Abstract

The invention relates to a millimeter-wave radar signal processing system and method. The millimeter-wave radar signal processing system comprises an DSP (digital signal processor) minimum system, a DSP is connected with a DAC (digital-analog converter) frequency modulation signal generating circuit, an intermediate frequency processing circuit, a communication circuit, an LED visual alarming circuit and a BUZZER audio alarming circuit, an ADC (analog-digital converter) is disposed in a DSP control unit, the DAC frequency modulation signal generating circuit is controlled through cooperation among the DSP processor, a multichannel serial communication interface disposed inside the DSP processor and a DMA control module, and the DAC frequency modulation signal generating circuit comprises a low-accuracy DAC and a filtering and amplifying circuit connected with the low-accuracy DAC. The millimeter-wave radar signal processing system is low in cost, high in integration level and simple in realization mode.

Description

technical field [0001] The invention belongs to the technical field of millimeter wave radar, and in particular relates to a signal processing system and method of millimeter wave radar. Background technique [0002] Vehicle safety is getting more and more attention from consumers. Active safety technology plays an increasingly prominent role in vehicle safety. It can effectively prevent accidents. Millimeter wave radar technology is widely used in the detection of the surrounding environment of vehicles. In particular, the frequency-modulated continuous-wave millimeter-wave radar can detect the distance, speed and orientation of stationary and moving targets, so as to obtain information about the surrounding environment of the vehicle, and realize technologies such as front collision avoidance, rear blind spot detection, and lane change assistance. [0003] At present, the millimeter-wave radar systems developed by major manufacturers adopt different system architectures, e...

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 王陆林张世兵徐达学
Owner CHERY AUTOMOBILE CO LTD
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