问个术语 - front-end sensitivity

front-end 前端，例如句子： Under the background of global informatization, sensors, which exist in the frontend of information stream, are taking place profound changes, as being-wireless,networking, synthesizing, and micromation have become four development trends ofsensor technologies. 在全球信息化背景下,处于信息流前端的传感器正发生深刻变化,无线化、网络化、综合化和微型化已成为传感器技术的发展方向。 再如：The development of wireless communication offers challenge on frontend circuit of transceiver. Mixer is an important building block in RF frontend to achieve frequency translation. the basic operating principle of CMOS mixer is introduced, the mixer structures in common use are presented, along with theirs virtue and shortcomings. The main design techniques of mixer,authors’ research on linearity analysis of transconductance are also presented, along with a new topology of mixer authors designed. 无线技术的发展对收发信机前端电路提出的新要求是:高的工作频率,低电压,低功耗,高度集成。混频器是射频前端电路中进行频率变换的十分重要的模块,主要介绍了CMOS混频器的基本工作原理,实现混频的一些常见结构,这些结构的优缺点。并介绍了当前CMOS混频器的主要电路设计技术以及作者在混频器跨导线性度分析方面进行的研究,文中还给出了作者设计的一个新型混频器的结构。 【 在 teamo 的大作中提到: 】 : Cognitive radio sensitivity can be improved by : enhancing radio RF front-end sensitivity, exploiting digital : signal processing gain for specific primary user signal, and : ...................