第二类信号适用于当多普勒速度已知时，可以实现很高的测距精度，当距离己知

The second type of signal is suitable when the Doppler speed is known, it can achieve a high range accuracy, when the distance is known, it can achieve a high speed accuracy and when the multi-target speed is the same, it can have a very high The distance resolution can be very high when the distance is the same. In addition, the second type of signal is also suitable for searching long-distance targets. <br>The fuzzy function of the third type of signal presents regularly arranged spikes on the plane, which determines that the signal has high distance and speed resolution, suitable for targets with high distance and speed resolution, but when the target distance and speed distribution range When the clear area is exceeded, there is distance and speed blur. One dimension can be sacrificed to guarantee another dimension. For example, increase the sub-pulse interval to eliminate distance ambiguity and tolerate speed ambiguity or reduce the sub-pulse interval, eliminate velocity ambiguity and tolerate distance ambiguity

The second type of signal is suitable for achieving high ranging accuracy when Doppler speed is known, and when the distance is known, it can achieve high speed accuracy and, when the multi-target speed is the same, can have a high distance resolution when the distance is the same. In addition, the second type of signal is also suitable for the search of long-range targets.<br>The fuzzy function of the third type of signal presents the sharpness of the regular arrangement on the plane, which determines that the signal has a high distance and speed resolution at the same time, and is suitable for the target with high resolution of distance speed, but when the target distance and velocity distribution range exceed the clear range, there is a distance and speed blur. Sacrifice one dimension can be used to guarantee another dimension. For example, increase subpulse interval, eliminate distance blur and tolerate speed blur or reduce sub-pulse interval, eliminate speed blur and tolerate distance blur

The second kind of signal can achieve high ranging accuracy when the Doppler velocity is known. When the range is known, it can achieve high speed measurement accuracy, and when the multi-target speed is the same, it can have high range resolution and high speed resolution when the range is the same. In addition, the second kind of signal is also suitable for searching long-distance targets.<br>The ambiguity function of the third kind of signal presents regular spikes on the plane, which determines that the signal has high range and velocity resolution at the same time, which is suitable for targets with high range and velocity resolution. However, when the range of target distance and velocity distribution exceeds the clear area, there is range and velocity ambiguity. One dimension can be sacrificed to ensure the other. For example, increasing the sub pulse interval, eliminating the distance ambiguity and tolerating the speed ambiguity, or reducing the small pulse interval, eliminating the speed ambiguity and tolerating the distance ambiguity