本文提出了一套移频函数理论。
In this paper, a frequency shifting function theory is developed.
二进制代码移频键控BCFSK ？
快速移频键控FFSK ？
移频转换器FSC ？
而后又进行了移频，并对调制转移光谱进行了噪声分析。
Finally, analysis of the noise is obtained, from which we can improve the system.
本文介绍了移频轨道电路调整状态及分流状态调整电阻的计算方法。
Method of calculating the adjusting resistance of frequency shift track circuit for normal state and shunting state is introduced.
“移频”可以使您听到并辨别传统助听器无法使您听到的高频语言声。
ImpaCt will allow you to hear the high frequency speech cues that traditional amplification does not.
决定转发移频脉冲干扰品质的是其移频量和与信号脉冲的相对延迟时间。
The key factors of the Relayed frequency shift jamming to it's quality are it's frequency shift amount and the time delay between the jamming pulse and the jammed signal.
本文分析了线性调频脉冲压缩雷达的工作原理、移频干扰原理和卷积干扰原理。
In this paper the working principle of the LFM pulse compression radar, and the principles of shift frequency jamming and convolution jamming are analyzed.
本文针对微机监测系统中移频采集机功能的实现和微机监测相关技术进行了研究。
This thesis makes a research on the frequency-shift acquisition and technologies about microcomputer monitoring.
本文详细介绍了如何解决在线测试现代电气化铁路移频轨道电路参数的技术难题。
This paper shows in detail about how to resolve some technical problems for on-line testing circuits parameters in electrical railway.
提出了卷积码与GMSK(高斯最小移频键控)调制器级联系统的一种迭代译码方案。
An iterative decoding scheme is proposed for the concatenation of a convolutional code and a GMSK modulator.
根据移频轨道电路的特点，本文分析了电压、电流在线测量过程中采用的信号采集技术。
According to the characteristics of frequency shift track circuits, this paper has analyzed signal acquisition methods of voltage and current measurement on line.
文中的的算例表明移频与逆迭代法结合后对频率约束的动力拓扑优化问题非常有效。
The example in the paper shows the efficiency of shift frequency together with inverse iteration to perform the dynamic topology optimization with frequency constrain.
本文介绍了ZPW- 2000 A无绝缘移频自动闭塞工程调试中实验程序及实验方法。
The paper gives an introduction to the test procedure and method for construction debugging of ZPW-2000A non-insulated frequency-shift automatic blocking equipment.
根据移频轨道信号的特点，本文提出了一种适合我国铁路信号的检测方法——时频分析的方法。
Based on the characteristics of Domestic frequency shift key track signal, this paper presents a kind of appropriate detection method for our national train signal — Time-frequency analysis.
通过噪声干扰、噪声调幅干扰和移频干扰对脉冲压缩雷达的干扰仿真得出了一些有意义的结论。
This paper discusses the results of system simulation of linear frequency modulation pulse-compression radar and draws some conclusion on its capability of counter-jamming.
该检测系统具有体积小、接口丰富、精度高等优点，为设计快速、准确的移频检测系统提供了依据。
The testing system has many advantages, such as little volume, abundant interface, and high-accuracy, which supplied the basis for designing high-speed and high-accuracy FSK testing system.
结果表明利用光纤声光耦合器的移频与滤波特性，可研制成一种全新结构的光纤声光耦合环形谐振腔。
It is found that a novel acoustooptic coupled ring resonator can be got for the frequency shift and filtering characteristics of the acoustooptic fiber coupler.
本文对移频自动闭塞发送设备信息源电路的频率安全性及稳定性进行了分析，并总结出最佳设计方案。
The article analyses the frequency security & stability of signal generator circuit of dispatching equipment of automatic block with frequency shift, and an optimum design scheme is concluded.
主要产品有：DSP智能数字移频系列、广播音箱系列、界面麦克风系列、会议系列、无线麦克风系列。
The main products has: DSP series intelligent digital frequency shift, radio speaker series, the interface microphone series, meeting series, wireless microphone series.
系统采用移频键控（FSK）调制方式，对轴温数字信号进行处理并发射，上传给便携式模拟接车系统。
The system adopts FSK modulation way to carry out directly digital signal of axle tempratureand transmit to the receiving system of test train.
结果表明，带反馈的主动移频式孤岛检测的检测盲区明显小于固定扰动的主动移频式孤岛检测的检测盲区。
The results indicate that non-detection zone of active frequency drift with feedback method is obviously less than non-detection zone of active frequency drift with fixed disturbance method.
本文基于线性调频脉压信号在时间和多卜勒频率间存在强耦合的事实，提出用移频干扰实现欺骗干扰的方法。
Based on the fact that a chirp radar signal has a strong coupling between time and velocity, a deceptive jamming technique with shift frequency is proposed.
根据移频减振降噪原理，借助实验优化设计，分析了振动传递系统的六个刚度对抑制振动噪声传递的主次关系。
The relationship of six stiffness parameters with the restraint of vibration transfer is discussed by means of experiment optimal design.
该方法根据加入扰动的不同，可以分为固定扰动的主动移频式孤岛检测方法和带反馈的主动移频式孤岛检测方法。
According to joining the different disturbance, this method can be divided into active frequency drift with fixed disturbance method and active frequency drift with feedback method.
针对UM 71移频电容在线测试仪测量数据智能化管理的要求，设计、开发UM 71移频电容在线测试仪数据支持系统。
Aimed at the demand of intelligent data management for UM71 frequency-shift capacitance online measurer, a data support system is designed and developed.
数字调制解调技术在数字通信中占有非常重要的地位，常用的数字调制有：移频键控(FSK)和移相键控(PS K)等。
Digital mod technology in the digital communication occupies a very important position, commonly used digital modulation are: frequency shift keying (FSK) and phase-shift keying (PSK), and so on.
最后我们以TMS320F 2812为核心设计了UM 71轨道信号的参数检测系统，并部分实现了移频轨道信号的检测功能。
At the last, we designed a UM71 track signal parameters detecting system base on TMS320F2812, and implemented part functions of the frequency-shift track signal detecting.
最后我们以TMS320F 2812为核心设计了UM 71轨道信号的参数检测系统，并部分实现了移频轨道信号的检测功能。
At the last, we designed a UM71 track signal parameters detecting system base on TMS320F2812, and implemented part functions of the frequency-shift track signal detecting.
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