数字正交相干检波,digital quadrature coherent detection
1)digital quadrature coherent detection数字正交相干检波
1.The digital receiver is with larger dynamic range,higher I,Q output precision,using bandpass sampling method for single-channel IF sampling,digital filtering methoddigital quadrature coherent detection.介绍了一种数字中频接收机的工程实现办法,该数字接收机具有较大的动态范围,较高的I、Q输出精度,采用的是带通采样法进行单路中频采样,数字滤波法进行数字正交相干检波。
2)quadrature coherent detection正交相干检波
1.Realization ofquadrature coherent detection by direct sampling of IF signal;直接中频采样实现正交相干检波的研究
2.The essential principles are analyzed pointing at the method of realizing digitalquadrature coherent detection by direct sampling,which has been put forward recent years,and a new realizing method is explained with a systematic view.针对近年来提出的通过直接采样实现数字化正交相干检波的方法 ,分析了其基本原理 ,并用系统的观点解释了一种新的实现方法 ,阐明了该方法的基本原理及适用条件 ;理论分析及仿真结果表明 ,这一方法完全可以满足高性能数字化处理的要
3.The principles of realizingquadrature coherent detection by direct sam pling of Intermedi-ate Frequency(IF)signals are introduced in this paper.介绍了用直接中频信号采样方法实现正交相干检波的基本原理,分析并总结了到目前为止已知的几种中频采样的具体方法。
英文短句/例句
1.Digital Intermediate Frequency Quadrature Coherent Detection System Based on Polyphase Filtering基于多相滤波的数字中频正交相干检波系统
2.Realization of quadrature coherent detection by direct sampling of IF signal直接中频采样实现正交相干检波的研究
3.Extraction of the In-pulse Characteristics of Signal Based on Direct Sampling from IF signal and quadrature coherent detection基于中频直接采样正交相干检波技术的信号脉内特征提取
4.coherent echo modulation and detection相干回波调制与检波
5.coherent light detecting and ranging相干光检波与测距系统
6.R waveform calibration and QRS waveform detection of B-splines-based biorthbogonal wavelets基于B-样条双正交小波R波的标定和QRS波检测
7.Some Properties of 3-Band Orthogonal Wavelets and Their Parametrizations3带正交小波的若干性质及其参数化
8.Interference removal using wavelet packet transform orthogonal signal correction in near-infrared spectroscopy小波包正交校正法用于近红外光谱的干扰消除
9.Realization of Orthogonal Phasor Filter Based on TMS320C6713基于TMS320C6713的正交相量滤波器的实现
10.The principal advantage over the dual filter coherent detection is a four-fold reduction in bandwidth.与双滤波器相干检波相比的主要优点是带宽减少了四分之三.
11.Squeezing of Quadrature Phase Operator of a Coherent State of a Harmonical Oscillator in a Finite - dimensional Hilbert Space;谐振子相干态正交相位的高阶压缩效应
12.Research on Wavelength-Division Multiplexing of Interferometric Fiber Optic Signals;多路光纤相干检测信号的波分复用技术研究
13.Testing Method of Coherent Tag Signals Based on Digital Beamforming基于数字波束形成的相干标签信号检测方法
14.Analysis of Interferences in VHF 3 Off-set Carrier Overlapping Area;VHF三偏置载波信号交叉及相关干扰分析
15.Research on Grid-Connecting and Islanding Detection for Three-Phase Inverters三相正弦波逆变器并网及孤岛检测技术研究
16.Carrier Phase-ambiguity Correction Based on Unique-word Detection基于独特码检测的载波相位模糊纠正方法
17.Parameterization of 4-Band Orthogonal Scaling Filters with Linear Phase具有线性相位的4带正交滤波器的参数化
18.Digital Quadrature Transformation Techniques of ILS Signals Based on Polyphase Filters基于多相滤波的ILS信号的数字正交变换技术
相关短句/例句
quadrature coherent detection正交相干检波
1.Realization ofquadrature coherent detection by direct sampling of IF signal;直接中频采样实现正交相干检波的研究
2.The essential principles are analyzed pointing at the method of realizing digitalquadrature coherent detection by direct sampling,which has been put forward recent years,and a new realizing method is explained with a systematic view.针对近年来提出的通过直接采样实现数字化正交相干检波的方法 ,分析了其基本原理 ,并用系统的观点解释了一种新的实现方法 ,阐明了该方法的基本原理及适用条件 ;理论分析及仿真结果表明 ,这一方法完全可以满足高性能数字化处理的要
3.The principles of realizingquadrature coherent detection by direct sam pling of Intermedi-ate Frequency(IF)signals are introduced in this paper.介绍了用直接中频信号采样方法实现正交相干检波的基本原理,分析并总结了到目前为止已知的几种中频采样的具体方法。
3)quadrature coherent detector正交相干检波
1.Thequadrature coherent detector is widely used in the field of signal processing since it can reserve all information about the complex envelope of IF signal.正交相干检波可以保留信号复包络的所有信息 ,因而在信号处理领域中有广泛的应用。
2.Considering that traditional digitalquadrature coherent detectors present smaller image frequency ratio,smaller data throughput and heavier cost of resources,a new method based on polyphase filter and reduced adder graph is given in this paper.针对传统正交相干检波方法存在镜频抑制比、数据吞吐率小以及硬件设计资源消耗大的不足,提出了一种基于多相滤波和简化加法器图结构的数字正交相干检波方法,此方法在有效改善系统正交相干检波性能的同时,提高了数据吞吐率,节省了系统实现的硬件资源。
4)digital quadrature detection数字正交检波
5)digital quadrature coherent detector数字正交相检
6)Digital Quadrature Envelope Detection正交数字包络检波
延伸阅读
相干散射和非相干散射再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下，源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中，存在一系列因素使散射过程成为非相干散射。主要的因素是：原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射，源函数是相当复杂的。
