零中频 meaning in Chinese
zero intermediate frequency
Examples
- Zero - intermediate frequency receiver
零中频接收机 - The digital if signal is converted to zero if by digital down converter , then taken fft spectrum analysis with hann window in advance
数字中频信号首先通过数字混频下变频至零中频，然后作加海窗的复fft谱分析。 - The digital base - band cdma transmitting and receiving scheme is put forward . the scheme uses a technique called as zero medium frequency without the need of pn codes synchronously are resumed
提出了具有免伪码同步恢复、免载波同步提取、免位同步的零中频cdma数字基带发送、接收方案。 - The related issues to zero medium frequency including digital match filter and orthogonal sampling are studied . the research makes a basis for the development and realization of cdma hardware system
对采用的零中频技术、数字匹配滤波器、正交采样所涉及的问题进行研究，为硬件系统的研制打下理论基础。 - Digital down converter ( ddc ) converts digitized if data into filtered baseband data which can be processed by a standard dsp microprocessor . ddc is a core part of a software defined radio ( sdr ) system
数字下变频( ddc : digitaldownconvert )是将中频信号数字下变频至零中频且使信号速率降至适宜通用dsp器件处理速率的技术。