A digital demodulation method of the FSK Signal is presented when its frequency parameters are unknown.
提出了一种在未知信号频率条件下的FSK信号数字化解调方法。
This paper introduces a multipurpose digital demodulation method based on SDR, which is one kind of non-coherent demodulation types.
针对跳频通信系统，提出一种非相干的，高频带利用率的调制方案。
A simple digital demodulation method is proposed for the DPSK-PM modulated signals, which are commonly used in the satellite USB (Unified S-band) tracking telemetry and command system.
针对卫星usb测控系统中常用的DPSK - PM调制技术，设计了一种简单的数字解调方法。
The principle of digital modulated signal is analyzed in this paper. Based on instant character parameters, a kind of digital communication signal demodulation method is established.
分析了信号数字调制的基本原理，提出一种基于信号瞬时特征参数的数字通信信号解调方法。
The traditional digital signal demodulation method that realizes more complex has the problems of carrier recovery, symbol synchronization and so on.
传统的数字信号解调方法存在着载波恢复、符号同步等问题，实现起来较为复杂。
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。
Then, the paper introduces the math module and achieving method of software modulation and demodulation of common digital modulating signals used in telecontrol & telemetry system.
接着介绍了遥控遥测常用的数字调制信号的软件调制解调的数学模型和实现方法。
Realize digital orthogonal demodulation; the method and results of amplitude consistence and phase orthogonality of the I, Q signal have been given;
给出数字正交解调后输出I、Q两路信号的幅度一致性误差和相位正交性误差的测试方法和测试结果；
A method to design efficient radar wideband digital quadrature demodulation receiver is described. The design condition is also given.
描述了一种高效的雷达宽带正交接收机的全数字设计方法，给出了设计条件。
The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.
通过分析同相、正交通道误差对正交解调性能的影响，确定了滤波器最佳设计准则。
The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.
通过分析同相、正交通道误差对正交解调性能的影响，确定了滤波器最佳设计准则。
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