Complex signal

Application of complex signal analysis to process ground penetrating radar data

复信号分析技术及其在地质雷达数字处理中的应用

By mapping the complex signal space into the real one .

新方法在无性能损失的前提下将复信号空间映射到实信号空间上来处理。

Complex signal analysis of ground probing radar and its improvement

探地雷达复信号分析及改进

Application Study of DDS in Complex Signal Generation

DDS在复杂信号产生中的应用研究

Technology of Radar Complex Signal Generation

雷达复杂信号产生技术

Research on Complex Signal Identification Based on High-order Cumulant under Low Signal / Noise Rate

基于高阶累积量的低信噪比复杂信号识别研究

Both of them make use of the relationship between the amplitude and phase of the complex signal .

两者均考虑了复信号幅度与相位的关系。

Study of application of complex signal analysis to predicting karst-fractured ground water with GPR

复信号分析技术在地质雷达预报岩溶裂隙水中的应用研究

Asymptotic Property Study of the least square estimates of 2-D exponential signals via complex signal processing approach

用复信号处理方法研究二维复指数信号最小二乘估计的渐近性质

More over , a complex signal constellation can provide higher spectrum efficiency than a real signal constellation .

另一方面，复信号星座图映射方式将比实信号方式带来更高的系统频谱利用率。

In magnetic resonance imaging ( MRI ), the complex signal contains both the magnitude and phase parts .

磁共振成像得到的信号是复数形式，包含幅度和相位。

This algorithm is very successful in high-pulse-density radar environments and for complex signal types .

该算法能够适应固定重频、参差重频、抖动重频和滑变重频交织的高密度复杂信号环境。

The characteristics of error motion of shafting is a complex signal which includes periodic component and random term .

轴系回转误差运动的特征是一项复合信号，它含有周期分量和随机分量。

In the shallow layer detection , the detection of small target buried shallowly requires more complex signal processing method .

而在浅地层探测中，地雷等浅埋小目标的探测，对浅地层探地雷达的信号处理方法提出了更高的要求。

Underwater signal is quite complex signal that is not totally random signal , but it has certain chaos characteristics .

水下信号是相当复杂的信号，不完全是随机信号，而是具有一定的混沌特性。

The technology has turned itself into a necessary process in terms of producing precision complex signal , linear network and passive network .

在生产精确的混合信号、线性和被动网络方面，该项技术己成为必要工序。

It is shown that the new method is successful in high_pulse_density radar environments and for complex signal types .

由仿真结果可见此算法可成功应用于复杂的高密度的雷达环境。

Studies prove that a complex signal transduction network underlies the development of plant disease resistance by Arabidopsis mutants .

利用拟南芥突变体证明植物抗病信号途径是个复杂的网络。

As a new and complex signal analysis technology , modulation domain analysis has already been applied to many fields such as electronic countermeasures and radar .

在此基础上发展起来的调制域分析技术作为一种新的复杂信号分析技术，已使用于众多领域，如在电子对抗、雷达等方面。

The analysis of related theory proved that the fault vibration signal of rotating machinery is a complex signal which has some components with single frequency .

通过对相关理论的分析证实了旋转机械的故障振动信号基本上是一个复合信号。

During recovery stage and chronic stage , the lesions on DWI change to equal or complex signal , partly cyst signal .

恢复期及慢性期，DWI影像学逐渐改变变成等信号、杂信号，部分为囊性信号，且不易显示病灶。

This method is simple and effective , though it requires measurements of complex signal and a priori knowledge of the polarization characteristics of interference .

该方法简单、实用，但需要获得信号的复数形式以及干扰极化特性的先验知识。

This paper provides a new IF quadrature sampling and processing approach by sampling IF signal directly and produces quadrature complex signal by digital signal processing .

提出了一种新的中频正交采样和处理方法，即直接在中频对信号进行采样，然后利用数字信号处理的办法产生正交复基带信号。

Complex signal analysis is applied to separate instantaneous spectra , instantaneous phase and instantaneous frequency from Ground Penetrating Radar ( GPR ) signal .

作者利用复信号分析方法分离出地质雷达信号的瞬时振幅、瞬时相位、瞬时频率等参数，通过一维数值模拟对其进行多参数分析，并进行了工程应用。

The DSPs are mainly used to process the complex signal processing algorithms , and the FPGA mainly deals with the data transmission and sends the control commands .

信号处理板的DSP模块用于复杂雷达信号处理算法的实现，FPGA则主要用于数据的传输和控制。

Simulation results show effected by complex-labile interfere the noise suppression system with the adaptive nonlinear changer may guaranteed noise suppression performance of complex signal system .

实验结果表明，在复杂易变干扰作用下，利用非线性变换器的抑噪系统可保证复杂信号系统具有足够的抑噪效率，有效提高系统的抑噪能力。

By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal .

通过数字模拟实验与齿轮箱故障信号检测，验证了新的双线性时间-频率分布对复杂信号中瞬时分量的探测效果。

Unable to keep pace with challenges associated with complex signal analysis , analog scopes have limited capabilities that are driving them toward extinction ( figure ) .

对于复杂信号的分析所带来的挑战，模拟示波器其显然无法跟上其发展节奏，有限的功能正在使他们推出示波器市场。

First , the thesis introduces the complex signal and the analysis method , Next , the thesis analyses the polyphase filter and double quadrature mixer use the complex signal analysis method .

首先引入复信号的概念和分析方法，然后对镜像抑制混频器结构中的多相滤波器和双正交混频器的原理利用复信号分析方法进行了详细的分析。

Ping-pang cache structure can provide more time for signal processing and realize complex signal processing algorithms because the structure can process the signal while acquisition data from analog to digital converter .

乒乓缓存结构使系统在读取数据的同时进行信号处理，为信号处理提供更多的时间，便于复杂信号处理算法的实现。