It spurs us to develop highly efficient coding, modulation and signal processing techniques to improve the wireless frequency spectrum efficiency.
这种挑战使得人们努力开发高效的编码、调制以及信号处理技术来提高无线频率的效率。
The frequency spectrum and characteristics of pulse interval and width modulation (PIWM) are derived in detail.
推导了非同步型脉冲间隔与宽度双重调制(P I W M)的频谱及其特点。
According to frequency spectrum transfer characteristic of modulation and demodulation, we think the position measurement noise is Gaussian narrowband noise.
根据调制解调的频谱转移特性，提出了有效位移噪声是高斯窄带噪声。
The signal, after the Angle modulation, would change in its spectral structure. And the analysis on its frequency spectrum is an important and necessary step for signal processing.
信号经过角度调制后，频谱结构将发生变化，频谱分析是处理信号的重要步骤和必要的保证。
The digital part is responsible for combining digital signal processor DSP with ADC to realize frequency spectrum remove, which is to realize the function of modulation and demodulation.
数字部分为数字信号处理器DS P结合adc实现信号的频谱搬移，达到调制解调功能。
The digital part is responsible for combining digital signal processor DSP with ADC to realize frequency spectrum remove, which is to realize the function of modulation and demodulation.
数字部分为数字信号处理器DS P结合adc实现信号的频谱搬移，达到调制解调功能。
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