发射信号频谱质量的好坏与雷达动目标探测性能高低密切相关。文中分析了脉冲调制波形前后沿抖动、电网谐波、 速调管工作状态等方面因素,对发射机射频信号频谱质量产生的影响。同时,以一套速调管发射机为实验系统,进行实验 分析和验证。以实验数据的形式,分别指出以上各种因素对发射系统射频功率频谱质量影响程度。对速调管发射机的工 程应用,具有一定的指导意义。

The quality of frequency spectrum of transmitted signal could affect the quality of moving target indicator detection of radar. The factors, such as modulation pulse, harmonic component of electric network and working state of the klystron, are analyzed, which have the influence on transmitter frequency spectrum quality. A series of experiments are processed on a experimental model with klystron. Then, a mass of experiment data is offered to prove the effects on the transmitter frequency spectrum quality. It is of benefit to the engineering application of the transmitter with klystron.