modulation demodulation

The Development of Modulation and Demodulation Technique Over the Telephone Network

电话网路调制解调的技术发展

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The emphases in this paper is that the modulation and demodulation system of optical fiber sensor is designed and made, and the experiments of temperature characteristic of optical fiber strain sensor are made.

本文的重点是设计F-P光纤传感器的调制解调系统。实验内容包括光纤传感器的温度特性和应变特性实验。

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The application of modulation and demodulation in current detection with optic fiber sensing

调制&解调技术在光纤传感式电流测量中的应用

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The modulation and demodulation technique is studied based on software radio in this paper.

本文将基于软件无线电，研究FQPSK的调制解调技术。

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Digital Modulation Demodulation Technology and Its Application Research Progress

数字调制解调技术及其应用的研究进展

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Then the results are analyzed and compared in order to design the applicable system, which are valuable to the system of quadrature amplitude modulation and demodulation.

通过对得到的仿真结果进行比较和分析，在理论上，得到合理设计QAM系统的方法.这些分析方法和得到的结论对工程中的QAM调制解调系统实现具有一定的价值。

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Weaver modulation and IWA demodulation are selected to realize the SSB module, so that the carrier phase deviation can be avoided. With the adoption of multi-item filtering structure and multi-level technology in the sample rate conversion, the amount of computing and storage requirements is greatly reduced.

单边带调制解调模块采用weaver调制与IWA解调，避免了载波相位偏差的影响；采样率转换采用多相结构和多级技术，大大降低了DSP的运算量和存储要求。

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Application of Continuous Phase Modulation and Demodulation in the High Speed Frequency-hopping System

连续相位调制及其解调在高速跳频系统中的应用

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Research on Combination Modulation and Demodulation Technology in Deep Space Communication

深空通信中组合调制解调技术的研究

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Key Technologies Research of Modulation and Demodulation System Based on Software Defined Radio

基于软件无线电的调制解调系统关键技术研究

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The Hardware System Design Based on DSP FPGA and the Study on Modulation Demodulation Technology of OFDM

基于DSP和FPGA的OFDM系统硬件设计与调制解调技术研究

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Modulation and Demodulation Technique of Remote Control Transmission System

遥控传输系统中的调制和解调技术

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Linear Modulation and Demodulation Method Based on Sampling and Filtering

基于采样和滤波的线性调制解调方法

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A Research on Modulation and Demodulation of Chaotic Synchronizing Digital Communication System

混沌同步数字通信系统的调制与解调研究

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The paper designs and implements the baseband processing module, the spread spectrum processing module, the IF modulation and demodulation, AGC, synchronization, equalization, etc.

本文设计并实现了基带数据处理模块，扩频处理模块，中频调制解调模块，实现了AGC、同步、均衡等方面的保障。

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Chaos parameter modulation and demodulation method based on state feedback

基于状态反馈的混沌参数调制解调方法

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Data Acquisition and Signal Modulation and Demodulation Technique in Gyroscope Survey Instrument

陀螺测斜仪数据采集与信号调制解调技术

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Modulation and Demodulation Techniques Based on Copy Theory and Computer Simulation

基于复制理论的调制解调技术及其计算机仿真

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The paper expatiated on the second modulation and demodulation method applied in the system.

文中详述了二次调制与解调的实现方法以及它在系统中的应用。

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Simulation and Performance Analysis on the System of Quadrature Amplitude Modulation and Demodulation Based on the Known Channels

基于已知特性信道的QAM系统的仿真和性能分析

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System USES orthogonal demodulation method to realize the modulation demodulation experiment.

系统采用正交解调方法实现各调制解调实验。

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On this basis, the scheme of digital double closed-loop modulation demodulation with four-state-bias was brought forward, and the process of modulation demodulation under some different conditions were studied, and gave the modulate-demodulate equations.

在此基础上提出了基于四状态偏置的数字双闭环调制解调方案，分别研究了几种不同条件下的调制解调过程，并给出了调制解调方程。

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It analyzed the related technologies of signal modulation and demodulation.

分析了信号调制与解调等技术。

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In wireless communication, the digital modulation and demodulation is a key technology.

在无线通信中，数字调制与解调技术是一项关键技术，他的好坏直接决定了通信系统的好坏。

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Researches are focus on all digital modulation demodulation structures and algorithms on the one hand and, and on the another hand on developing prototype with high speed A/ D, D/ A converters and high performance, large scale programmable chips.

研究的重点一方面是针对多种体制信号进行全数字化调制解调高效结构以及实现算法的研究，另一个方面就是采用高速A/D、D/A转换器以及高性能，大规模可编程器件进行样机的工程研制。

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