脉冲压缩是雷达中应用的一种技术,雷达发射宽的脉冲以增加照射到目标上的能量,同时仍保持发射窄脉冲时所具有的目标距离分辨力。它是一种能增加烧穿距离并使敌方更加难以收集电子情报的抗干扰特性。然而,就抗干扰而言,这项技术也有其优点和缺点。脉冲压缩雷达采用线性调频、相位或频率编码的宽脉冲。在雷达目标信号反射和接收之后,利用信号的调制或编码与内部参考信号一起把宽脉冲压缩成窄脉冲,于是就获得了距离分辨力。宽脉冲和窄脉冲之比称作 Pulse compression is a technique used in radar where radars emit wide pulses to increase the energy that is impinging on the target while still maintaining the target range resolution that is present when emitting narrow pulses. It is an anti-jamming feature that increases the burn-through distance and makes it harder for the enemy to collect electronic intelligence. However, this technique has its advantages and disadvantages as far as interference is concerned. Pulse compression radar uses linear FM, phase or frequency wide pulse encoding. After the radar target signal is reflected and received, the wide pulse is compressed into a narrow pulse with the internal reference signal by modulation or coding of the signal, thus obtaining the range resolution. The ratio of wide pulse to narrow pulse is called