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154-Ⅱ是典型的三通道振幅—和差式单脉冲测量雷达。为了消除目标远近变化和回波起伏时对测角精度的影响,采用自动增益控制对角误差信号实现归一化。在整个动态范围内,三个通道应严格保持幅相一致性。现就使用机器的过程中常易忽视的问题作一简略介绍。一、接收系统中增益的调整接收机的增益主要决定于中频放大器。因此,改变中放的增益即可达到控制接收机总增益的目的。如果调整不当,将导致接收机不能正常工作。
154-II is a typical three-channel amplitude-and-difference monopulse radar. In order to eliminate the influence of distance variation and echoes on the measurement accuracy, the automatic gain control is used to normalize the diagonal error signal. Within the entire dynamic range, the three channels should strictly maintain amplitude consistency. Now on the process of using the machine often overlooked problems for a brief introduction. First, the receiving system to adjust the gain Receiver gain mainly depends on the IF amplifier. Therefore, changing the gain in the receiver to achieve the purpose of controlling the total gain of the receiver. If not properly adjusted, will result in the receiver does not work properly.