It transforms the digitally modulated signal from short words occurring at high sampling rate to longer words at Nyquist rate.
低字率、高采样频率的数字调制信号被转换成高字率、奈奎斯特频率采样的信号。
On the basis of the features of the Fast Fourier Transform (FFT) and digitally modulated signals, this paper proposes a blind channel estimation algorithm.
根据快速傅里叶变换(FFT)和数字信号调制解调的特点，给出了一种盲信道质量估计算法。
This paper introduces how DDS techniques can be extended to produce frequency modulated(FM)waveforms as well as many types of digitally modulated waveforms.
介绍了如何利用DDS技术来产生调频波形及其他的数字调制波形；
Different types of digitally modulated signals that have similar, if not identical, power spectral density functions can have highly distinct spectral correlation functions.
一些不同的数字调制信号有着相同或相近的功率谱密度，但它们的谱相关函数却有明显区别。
The interference effects of single frequency, digitally modulated signal and radar signal to FM TV systems are studied by means of the subjective and objective measurements.
通过主观测量和客观测量研究了单频、数字调制信号和雷达信号对调频电视系统的干扰效应。
To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题，提出了一种适用于数字调制信号的载波频率估计方法。
To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题，提出了一种适用于数字调制信号的载波频率估计方法。
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