细化 (Zoom) 数字移频 (Digital Frequency Shift) 抽样率缩减 (Sampling Rate Reduction) 功率谱估计 (Power Spectrum Estimate)
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The main products has: DSP series intelligent digital frequency shift, radio speaker series, the interface microphone series, meeting series, wireless microphone series.
主要产品有：DSP智能数字移频系列、广播音箱系列、界面麦克风系列、会议系列、无线麦克风系列。
A new method for digital identification and demodulation of MPSK signals is presented under the condition of the Doppler frequency shift of channel attenuation.
针对衰落信道中广泛存在的多普勒频移现象，本文提出了一种MPSK信号数字化识别解调的方法。
It is an important technology to shift the frequency in digital vocal (musical) signal processing.
频移处理是数字语音(音乐)信号处理中一项十分重要的技术。
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