交会信号
The transmitter of this design is based the Direct Quadrature-up Conversion ( DQUC) structure. And the Local Oscillator signal is worked in two times of RF frequency, which not only save design cost, but also solves the spill caused the direct current system performance deterioration.
发射机部分采用直接上变频结构,具有很好的镜像抑制特性,并且本振信号以两倍射频频率工作,这样既节省了设计成本,又解决了直流泄漏导致的系统性能恶化的问题。
英语网 · 双语娱乐资讯
英语网 · 中考英语
英语网 · 英语口语