摘要
为了从宽带宽、信号强度差异大的已调中频信号中解调出视频信号,要求检波电路具有带宽宽、动态范围大、线性保真度高的特点。本文简要介绍了宽带接收机中线性检波电路的组成及性能,并重点从宽带线性检波的主要性能即带宽、线性保真度、动态范围等方面介绍了宽带线性检波的具体实现。
To recover the video signal from the modulated IF of wide bandwidth and large intensity difference, the detector should have the characteristics of wide bandwidth, and large dynamic range, high linearity fidelity. The theory and the performance of the wide bandwidth linear detector in the wide bandwidth receiver are introduced. The implementation of the wide bandwidth linear demodulation circuit is analyzed in terms of performance specifications on bandwidth, linearity fidelity and dynamic range.
出处
《国外电子测量技术》
2007年第9期53-55,共3页
Foreign Electronic Measurement Technology
关键词
宽带线性检波
线性保真度
动态范围
wide bandwidth linear detector
linearity fidelity
dynamic range
