内容：
在综述汽车防撞雷达各种应用波形的基础上,提出了一种具有多重优点的波形设计—MFSK波形设计,并对MFSK波形设计的约束关系深入展开讨论。基于经过分析波形的信号原理,建立了多种FSK波形的信号处理模型,根据处理模型所给出的处理结果,同时结合性能参数的设计要求,提炼出了各种波形参数设计的约束关系,这是进行汽车防撞雷达系统设计的基础步骤。为了验证该理论模型和波形参数设计约束关系的有效性,分别对2-FSK、MFSK等信号波形等理论模型场景进行了Matlab实验仿真。仿真结果符合理论模型的预期,在不提升汽车防撞雷达信号处理成本的情况下,汽车防撞雷达系统运用MFSK信号能够提高数据的正确性,表明所提出的波形设计有效可行,具有较好的测距精度。 On the basis of summarizing the application waveforms of automobile anti - collision radar, a waveform design with multiple advantages - MFSK waveform design is proposed, and the constraint relation of MFSK waveform design is discussed in depth. Based on the principle of signal analysis, the signal processing model of various FSK waveforms is established. Based on the processing results given by the processing model and the design requirements of the performance parameters, the constraint relation of various waveform parameters is extracted. Is the basic step in the design of vehicle anti-collision radar system. In order to verify the validity of the theoretical model and the design constraints of the waveform parameters, the theoretical model of 2-FSK, MFSK and other signal waveforms are simulated by Matlab. The simulation results are in accordance with the expectation of the theoretical model. The MFSK signal can improve the correctness of the data without increasing the signal processing cost of the anti-collision radar. It shows that the proposed waveform design is feasible and feasible. Accuracy of distance measurement.

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