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- A real time method for the calibration of the quadrature demodulation error of the RCS measurement radar receiver is proposed. 摘要针对脉间变频RCS测量雷达采用模拟正交解调方法获得同相分量和正交分量所引入的解调误差，提出了一种实时校准方法。
- It is clearly clarified the conceptions of quadrature modulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system. 摘要阐明了MRI系统中所使用的正交调制、正交解调、正交激发和正交接收的概念。
- This method directly makes quadrature demodulation of the IF signal by utilizing the second-order sampling and sign-alternating,and then calculates the correlation value between the receiver signal and the local spreading code in analog domain. 该捕获方法采用二阶采样和符号交替实现中频信号的正交分解;再利用模拟匹配滤波器在模拟域计算接收信号与本地扩频码的相关值.
- As a key technology in digital quadrature demodulation system,the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system. 中频采样是数字正交鉴相系统中的一项关键技术,具有锐截止特性的中频采样滤波器可以改善鉴相系统的性能。
- Under certain conditions, combining the polyphase filtering structure of decimation filter, put forward an optimum design method of quadrature demodulation receiver, which owns decimation structure. 结合抽取滤波器的多项滤波结构，在一定条件下，推导出了一种含抽取正交解调接收机最优结构设计方法。
- This method analyzes the cyclostationary of pretreated signals.In order to realize quadrature demodulation, the 4th-order cyclic cumulant is used to estimate carrier frequency and phase deviation. 通过对预处理后的MPSK信号进行循环平稳分析，利用已调信号的4阶循环累积量估计载波频率和初始相位偏差以便实现正交解调。
- quadrature demodulation receiver 正交解调接收机
- Through the analysis of advantages of several GMSK arithmetic and requirement of system processing, the base-band time lag demodulating algorithm based on quadrature demodulation and TMS320VC5402 are selected for base-band processing. 通过分析GMSK几种算法的优越性以及系统对处理的需求，选择基于正交解调的基带时延检波算法以及TMS320VC5402进行基带处理。
- Application of DDC Chip in Radar Quadrature Demodulation Receiver DDC在雷达正交接收机中的应用
- The Performance Analysis of Ultra-Wide-Band Quadrature Demodulation Receiver 超宽带正交解调接收机性能分析
- APPLICATION RESEARCH OF QUADRATURE DEMODULATION IN ELECTRICAL MEASUREMENT 同相分离法在精密电测量中的应用研究
- Errors analysis and clibration of subsampling digital quadrature demodulation 基于欠采样数字正交解调的误差分析及校正
- A Method for Real Time Correcting the Amplitude and Phase Errors of UWB Quadrature Demodulation Receivers 一种正交解调超宽带接收系统幅相误差实时校正方法
- A method for compensation of quadrature demodulation of synthetic aperture radar 一种合成孔径雷达正交解调误差校正方法
- Research on Signal Processing Method Based on Quadrature Demodulation for Coriolis Mass Flowmeter 基于正交解调的科里奥利质量流量计信号处理方法研究
- The Analysis and Correction of Quadrature Demodulation Errors of Ultra Wide Band Signal 超宽带信号正交解调误差的分析及校正
- digital quadrature demodulation 数字正交解调
- quadrature demodulation 正交解调,相移90°解调
- Design of a Digital Quadrature Demodulator for Signal Analysis 一种用于信号分析的数字正交解调电路设计
- Set up quadrature cells in the domain. 设置域内的积分单元。
