| 1. | Based on the second order statistics , an algorithm is proposed to separate mixed complex - value signals online
摘要基于二阶统计量，对在线分离复值混合信号法进行了研究。 |
| 2. | The methods of direction finding mainly include maximum ( minimum ) signal method , amplitude - comparison method , phase - comparison method and time difference method
测向的方法主要有最大(最小)信号法、比幅法、比相法、时差法。 |
| 3. | Methods of measurement for radio transmitters . part 10 : methods of measurement for television transmitters and transposers employing insertion test signals
无线电发射机的测量方法.第10部分:采用插入试验信号法对电视发射机和转播发射机的测量方法 |
| 4. | The study cases show that the test signal method developed in this paper can be effectively applied in small signal stability analysis and pss design
理论分析和算例仿真结果均表明本文提出的测试信号法能够方便有效地应用于电力系统小扰动稳定性分析和电力系统稳定器( pss )设计。 |
| 5. | This simplification principle is the foundation of the following analysis . using the test signal method , a detailed analysis of subsynchronous oscillation for a hvdc system is performed
( 3 )对一个仅含有直流输电线路的系统，采用复转矩系数- - - -测试信号法，对其次同步振荡特性进行了分析。 |
| 6. | The theoretical background of the test signal method is the theory of mechanical admittance and mode identification , which is based on the frequency scanning of the test signal and has already been used widely in mechanical engineering
提出了一种基于测试信号的小扰动稳定性分析方法?测试信号法，用于分析电力系统低频振荡问题。其理论基础是机械导纳理论和模态辨识理论。 |
| 7. | All these changes , which are of importance to subsynchronous oscillation analysis , cannot be described with the quasi steady state ( qss ) model any more . therefore , the deficiency of qss - model - based eigenvalue method is pointed out and a novel method named complex torque coefficient - test signal method is adopted to analyze the subsynchronous oscillation caused by hvdc or facts devices
基于此，指出了采用准稳态模型进行hvdc系统次同步振荡分析的局限性，并引入了分析hvdc或含有facts装置的系统次同步振荡问题的方法：复转矩系数- - - -测试信号法。 |
| 8. | The time base drift deduced by the change of temperature is discussed particularly and the compensation method of it is analyzed . finally , we also studied frequency band extension under time base distortion condition by simulation . the results show that the compensation of time base distortion can reduce the error of signal and then increase the accuracy of frequency band extension
首先，介绍时基失真的相关概念及其对测量信号的影响；其次，对时基失真特性测量的不同方法进行了理论分析和比较，并对分析信号法进行了仿真研究；再次，对时基失真的补偿方法进行分析和仿真研究；并专门对温度变化引起的时基漂移及其补偿方法进行了简要分析；最后，对时基失真条件下的频带展宽技术的仿真表明时基失真的补偿可以减小信号的误差，因而提高频带展宽的精度。 |
