Abstract : the hail proof communication network is severely disturbed by the same frequency and additional distortion of the co - adjustment which affects the sufficient work of the system 文摘:目前防雹通信网络受到严重的同频干扰以及附带的互调失真，已经成为影响该系统有效工作的一大难题。
The methods of measurement for monotone and dual tone intermodulation suppression are provided as receiver works at fh mode based on intercept probability and false alarm probability are up to par 提出在满足截获概率和虚警概率条件下，接收机跳频工作方式的单音和双音互调抑制性能测试方法。
An overview of the intermodulation distortion analysis of cmos gilbert mixers is presented . the main difficulties in performing the nonlinearity analysis in mixers are discussed in detail 本文给出了当前文献中对cmosgilbert型混频器互调失真分析的概述，并对分析混频器非线性性能中所遇到的主要困难进行了详细讨论。
Results are given for a series of two - tones inter - modulation distortion measurements and the im3 is 48dbc . it is shown that a 24db improvement in the inter - modulation margin can be achieved when the amplifier ’ s output is 49dbm . and the efficiency of the whole system is 27 . 8 % 经双音测试证明,本系统在输出总功率为49dbm时,三阶互调产物抑制比为48dbc ,较未加入线性化系统前改善了24dbc ,此时系统总效率为27 . 8 % 。
According as the analysis of third - order inter - modulation of high - power amplifiers , an innovative practical method to adjust the feed - forward amplifier system to optimize the performance of feed - forward amplifier system is described . the application of feed - forward linearisation to a 890 - 915mhz amplifier is described 详细分析了高功率放大器的三阶互调产物的特点，并据此创新的提出了调整前馈线性化系统状态，优化前馈放大器性能的正确方法。
Theoretical analysis and simulation results demonstrate that asymmetries in lower and upper sidebands and imd magnitude variation depending on envelope frequency and junction temperature can appear , these results are in accordance with measurement results , and show that electrical and thermal memory effects exist 理论分析和仿真结果表明功率放大器上下边带不平衡和互调失真幅度依赖于包络频率和结温，结果和测量的结果是一致的，说明存在电和热记忆效应。
2 . 3 . 11 residents who wish to exchange hostel with residents of other hostels must have sufficient reasons . application form must be handed to their respective wardens within two weeks after the beginning of hostel residence . residents could only exchange hostels after receiving a written approval from the student hostels committee 2 . 3 . 11宿生如欲申请互调宿位，必须具备充份理由，并于入宿后两星期内向有关舍监递交申请表，获宿委会之书面批准方可互调；逾期之申请将不被考虑。
In this dissertation , researching from the basic concept of large signal network analysis , we discuss the measurement theory and technology of rf network nonlinearity and the characterization technology of intermodulation distortion in detail , and analyse some nonlinear characteristic excited with a one tone or multi - tone , such as am - am , harmonic distortion , intermodulation distortion , adjacent channel power ratio and how to qualitatively analyse nonlinearity of rf network to make the measurement and calibration 本课题从大信号网络分析的基本概念出发,详细讨论了射频网络非线性的测量理论和技术以及互调失真表征技术,分析了在单频音和多频音信号激励下的一些非线性特性,如am - am , am - pm ,谐波失真,互调失真( imd )和临近信道功率比( acpr )等,以及根据包络域方法定性地分析射频微波网络的非线性特性,以此来进行射频网络的非线性测量和校准。
Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters , local oscillation ( lo ) frequency , bandwidth of lo frequency under the condition that receiver configuration , sensitivity , dynamic range , instantaneous bandwidth and precision of frequency measurement are fixed 摘要针对跳频接收机的体制和灵敏度、动态范围、瞬时工作带宽、测频精度等设计参数，通过改变预选器组成、本振频率和本振带宽，分析接收信道的中频选取原则，以实现跳频接收机的互调抑制设计。
I will do some investigation on the methods of integrating the enterprise ' s information , from three individual aspects - broker , dbms , interface . through tremendous experiments , the essay will solve the problems which is based on the heterogeneous database ( hdb ) , make possible the various products " interchanging between java and c + + , and reliably guarantee the information ' s integration 本文通过大量的实验，分析异构环境中corba代理层互操作中存在的一些问题，并找到了相应的解决方法，并实现了不同orb产品间的java与c + +之间的互调，为基于corba的企业信息资源集成提供了可靠的保证。
