FSK

Time Domain Analysis Computer Simulation of Direct Detection FSK-FDM System

直接检测FSK－FDM光纤通信系统时域分析与计算机模拟

The results show that the FFSK has more virtues of phase continuation and higher band utilization than FSK and PSK/ DPSK.

结果表明：FFSK调制解调器具有相位连续、包络恒定的特征，频带利用率优于一般FSK和PSK/DPSK。

FSK caller signal automatically refresh existing system date and time, DTMF telephone signal to the original system, the time and date settings had no effect.

FSK来电信号自动刷新原有的系统日期时间，DTMF来电信号对原系统的时间，日期的设置无影响。

Select FSK communication method to combat multipath effect.

选择频移键控数据通信方式,提高抗多径干扰的能力.

Generally speaking, PSK system performance than switch Keying FSK system well, but must use synchronous detector.

一般来说, PSK系统的性能要比开关键控FSK系统好, 但必须使用同步检波.

Traditionally the noncoherent frequency-shift-keying ( FSK) is more commonly used in FHSS systems due to its simplicity compared with the coherent phase-shift-keying ( PSK) scheme.

传统的非相干移频键控广泛应用于跳频扩频系统中，因为它相对于相干移相键控比较简单。

In the special enviroment such as the manufactory of steel-making, for improving the work efficiency of the drivers, this paper proposes a solution of wireless remote control system based on modulation technique of FSK.

针对在工矿、钢铁企业等特殊场合下，为了提高内燃机车司机的工作效率，介绍了一种FSK调制的无线遥控数传系统的方案。

The signal types include SSB, DSB, PSK, AM, ASK, FM, FSK etc.

信号调制样式包括SSB, DSB, PSK, AM, ASK, FM, PSK等.

Research on the method of real time digital demodulation for the FSK signal

FSK信号数字化实时解调方法

this paper briefly described the basic principle of a fsk automotive collision warning radar system and the testing performance of our production.

文章简要介绍了FSK体制汽车避碰雷达的工作原理，并对该雷达系统的测试情况进行了介绍。

A New ALE Calling Method In FFH/ FSK System

短波快速跳频系统下新的ALE呼叫方法

Except being tested as a special experiment, Experiment module can also constitute more systems such as: ASK digital communication system, FSK digital communication system, TDM communication system and so on.

各模块可单独进行原理实验，也可级联成系统如：ASK数字通信实验系统、FSK数字通信实验系统、时分复用通信实验系统等。

Common Type , DTMF number display type and FSK calling display types available according to the functions.

按功能分为普通型 、 DTMF号码显示型和FSK来电显示型三种.

Study on demodulating multi-channel FDMA/ FSK signals on board based on FFT

基于FFT的星上多路FDMA/FSK信号解调研究

Asynchronous FSK wireless data traffic interface circuit design.

异步FSK无线数据通信接口的研制.

The FSK modem technique can be widely used for transmitting data in tone channel.

FSK调制解调技术广泛应用于话音通路传输数据.

In this paper, the wireless data radio takes the GPS differential positioning as a starting point, takes the FSK modulation mode, can complete the wireless transmission of data in S frequency band with the time division duplex operation mode.

本文设计的无线数传电台以用于GPS差分定位为出发点，采用FSK的调制方式，能在S频段以时分双工的工作模式完成数据的无线传输。

It can be used as the local oscillator in wave/ spectrum analyser. It also can be used as a new digitally modulated FSK/ PSK signal generator.

它可用作为波形、频谱分析仪的本机振荡器，也可用作为数字调制的移频键控（FSK）、移相键控（PSK）信号发生器。

a data sampling module of a fsk automotive collision warning radar system

FSK体制汽车避碰雷达的数据采集系统

The paper introduces a new solution to FSK signal receiver used by railway signal control system, and analyses the theory of FSK demodulation.

本文介绍了CTCS系统专用的FSK信号接收的新方案。

Intersymbol Interference in Optical Phase Diversity FSK Communication Systems

相位分集频移键控光通信系统中码间干扰的研究

π/ 4 D-QPSK base-band modulation and demodulation method realized by DSP technology is better than FSK, ASK, PSK in technical criterion. It is according to the request of digital honeycomb system.

利用DSP手段，实现的π/4D-QPSK基带调制解调在技术要求方面要优于FSK、ASK、PSK等调制方式，更能满足数字蜂窝系统的要求。

An algorithm was proposed to demodulate multi-channel FDMA/ FSK signals based on fast Fourier trans-form ( FFT).

提出了一种基于FFT的星上多路FDMA/FSK信号解调算法。

As the key signal system guaranteeing the safety for the railway, there are two types of FSK system used now by China railway: UT signal imported from France and the homemade YP signal.

FSK信号作为保障铁路安全运行的主要信号制式，在国内铁路上现在有两种，是法国引进的UT信号和国内自主开发的YP信号。

It adopts FSK modulation/ demodulation technology and has low error coding and is easy to connect PC.

nRF401是一个专用工业频段（433MHz）无线收发芯片。它采用FSK（移频键控）调制解调技术，具有无需曼彻斯特编码、误码率低、便于与单片计算机连接等特点。

Measuring Frequency of Low FSK Signal Adapting Phase Deducted Method

采用相位推算法测量低频FSK信号频率

Using four-frequency reuse FSK digital modulation technology and properly adjusting the four carrier waves, this paper describes how to realize multi-route and multi-kinds signals transmit within a communication line in the feeder automation system.

用四频复用FSK数字调制体制，通过对四个副载波的合理调配，在一条线路上实现多路、多种类型的通信。

This paper introduces a design method of data acquisition device in wireless dynamic electronic grab bucket scales. The functions with real-time acquisition, disposal, FSK modulation and transmission of load weight are implemented.

本文介绍无线动态电子抓斗秤中数据采集装置的一种设计方法，实现了对所扎货物重量信号的实时采集、处理和FSK调制发射功能。

A Method for FSK Timing Recovery Based On Data Transition Tracking Loop

一种基于DTTL环的FSK定时同步方法

It can collect 32 channels simu-lative signals, and gathers the signals to carry on the FSK modulation, transmits with the wireless to master station;

它能够将采集到的32路模拟信号进行FSK调制，用无线方式发送到上位接收机；