空间行波管脉间噪声测试

Interpulse Noise Test of Space TWTs

通过对现有国军标中行波管脉间噪声测试技术的研究分析,搭建了一套适用于现阶段空间系统对空间行波管脉间噪声指标要求的测试平台,选择了X波段和Ku波段两个典型型号的空间行波管,利用该平台进行了脉间噪声测试,经过测试和数据处理后,得到的行波管的脉间噪声功率谱密度值均小于-164 dBm/Hz,能够获得确切的空间行波管脉间噪声功率谱密度值。该平台对国军标的测试方法进行了改进和完善,能够准确测试分析出空间行波管的脉间噪声功率谱密度值,实现了现阶段空间系统对行波管脉间噪声的测试要求。

Based on the research and analysis of the existing national military standards,a set of test platform for the requirements of space TWT interpulse noise index in current space system is built.Two typical space TWTs of X-band and Ku-band are selected to carry out interpulse noise test by using the platform.After the test and data processing,exact power spectral density of TWT interpulse noise is obtained,and all the values are less than-164 dBm/Hz.This platform improves and perfects the test method of national military standards.It can accurately test and analyze the power spectral density value of space TWT interpulse noise,and meet the TWT interpulse noise test requirements of current space system.