| 摘要: |
| 本文以短波数字化中频接收机为例，讨论中频数字化接收机设计的几个关键问题，包括收机前端增益的确定、数字和模拟AGC门限的选取、二中频频率与取样率的选择、以及接收机信噪比（SNR）的核算。 |
| 关键词: 软件无线电 数字化设计 中频接收机 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:June 18, 2001 |
| 基金项目: |
|
| Several Key Techniques on IF Receiver Digitalization Design |
|
| () |
| Abstract: |
| In this paper, we discuss several key problems of the IF digital receiver designing through a HF receiver example. This design is distinguished from the analog receiver in front terminal gain, analog and digital AGC, choice of the second IF and sample rate. Finally, we estimate the performances of the digital receiver. |
| Key words: SDR technology,IF digitalization,Receiving front gain,Sampling rate, |
