But bandpass filter, IF filter and FFT spectrum analyzers′ realization methods are different in some parts.
然而各种频谱分析仪实现方法不尽相同,如带通滤波 器频谱分析仪、中频滤波器频谱仪和FFT频谱仪。
The function of IF filter in the FMCW millimeter wave radar system was discussed considering that parasitic AM was the main factor that affects the detecting range of FMCW millimeter wave radar.
针对寄生调幅是影响 FMCW毫米波雷达作用距离的重要因素 ,讨论了中频滤波器在 FMCW毫米波雷达系统中的作用 ,研究了滤波器性能与雷达作用距离的关系 。
Based on the theory analysis of this scheme and an engineering example,formula of frequency planning and design rules of intermediate frequency filter′s parameter are proposed.
对该新方案进行了理论分析,进而对这种改进二次变频方案提出了采用的频率配置关系和中频滤波器参数设计准则,并结合一个工程实例完成了相关设计。
Realization of digital IF filter in spectrum analyzer;
频谱分析仪中数字中频滤波器的实现
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