The noise performance in binary digital modulation system is analysed in the presence of gaussian hybrid additive white bimodal noise.
本文以一类高斯型混合非高斯噪声双模噪声为背景噪声，详细分析了二进制数字调制系统的抗噪声性能。
The full digital modulation system has high reliability and stability. The practice indicates that the economic and social benefits are gained after reconstruction.
实践表明，全数字调节系统可靠性高、稳定性好，改造后的经济效益和社会效益都有所提高。
In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.
在典型的通信系统中，调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
The experiment results justify the high recognition rate with less samples, thus the method can be used in the digital signal modulation recognition system.
实验结果表明，该调制识别方法在小样本下具有较高的识别率，可以应用在数字信号的调制识别系统中。
The digital transmission system Q factor-a new concept may be used to analyse the characteristics of digital transmission systems with different kinds of modulation.
数字传输系统的品质因数Q—这个新概念可以用于具有各种调制的数字传输系统性能的分析。
As the core mobile communications technology, one of the digital modulation technique is to achieve high-speed, highly efficient mobile communication system and an important guarantee.
而作为移动通信核心技术之一的数字调制技术是实现高速、高效的移动通信系统的重要保证。
A chaotic digital communication system via bifurcation parameter modulation is presented.
提出一种基于分岔参数调制的混沌数字通信系统。
The detection theory of resonator fiber optic gyro (R-FOG) based on the serrodyne modulation with two frequencies was introduced, and the correlative detection theory in digital system was analyzed.
介绍了基于双频率锯齿波组合调制的谐振式光纤陀螺(R - FOG)的检测原理，分析了数字系统信号相关检测的理论。
In this article, a control system software is designed using digital PID algorithm, which realize real-time control, dynamic display, data record, parameter modulation and malfunction alert etc.
本文应用数字PID控制算法设计了控制系统的软件，实现了实时控制、动态显示、数据记录、参数调整以及故障报警等控制功能。
The system adopts FSK modulation way to carry out directly digital signal of axle tempratureand transmit to the receiving system of test train.
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。
Quadrature Amplitude Modulation (QAM) is used to transfer signals by digital TV system based on DVB_C standard.
基于DVB_C标准的数字电视系统采用正交幅度调制(QAM)传送信号。
The two-frequency serrodyne modulation technique can be used in the digital R-FOG system.
双频率锯齿波组合调制技术可应用于谐振式光纤陀螺数字处理系统。
Finally, through debugging the digital system connected with optic route, the method of modulation and detection were proved.
最终，通过数字系统与光路的联调，验证了数字调制方案的效果，也验证了整个检测方案的可行性。
The requirements for modulation techniques to digital mobile communication system are presented and the improved lineally digital modulation schemes are also briefly described.
本文讨论了数字移动通信系统对调制技术的要求，着重分析了数字线性调制及其改进方案。
An introduction is given in the article to an automatic frequency modulation broadcasting system with digital audio recording function based on the computer software and hardware.
介绍了以多媒体电脑软硬件构成的电脑数码音频录制及调频广播节目自动播放系统。
Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16qam and 64qam RF signals.
从有线数字电视射频信号特征参数提取着手，建立了一套识别16QAM和64 QAM射频信号调制方式的数学算法。
In this paper, the technique is applied to a digital amplitude modulation broadcasting (DAMB) system with satisfactory results.
该文把此技巧应用到数字调幅广播(DAMB)系统，取得了令人满意的结果。
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system.
一种数字电路实现的脉冲宽度调制控制在可以将其建模为二阶或更高阶系统的系统中传输的电力。
The high-speed digital signal processing can complete the complicated the algorithm of control, and suit for the velocity modulation system that create the high performance.
数字信号处理器运行速度快，能够完成复杂的控制算法，适合于建立高性能的调速系统。
Then, the paper introduces the math module and achieving method of software modulation and demodulation of common digital modulating signals used in telecontrol & telemetry system.
接着介绍了遥控遥测常用的数字调制信号的软件调制解调的数学模型和实现方法。
This paper describes the design and realization of the communication system OFDM modulation, demodulation of the digital circuit.
适合系统学习OFDM技术。本文设计并实现OFDM通信系统的调制、解调部分的数字电路。
Digital television transmission system based on the OFDM consists of Error correction processing and digital modulation parts etc.
基于OFDM的数字电视传输系统由纠错处理和数字调制等组成。
And the high-speed digital signal processor (DSP) can deal with the complicated control algorithm, and suit for the velocity modulation system that create the high performance.
而数字信号处理器(DSP)运算速度快，能够完成复杂的控制算法，适合于建立高性能的调速系统。
The system is mainly composed of Digital Synthesis circuit, modulation circuit, broadband power amplifier, the MCU control system, and a module.
本系统主要由数字频率合成电路、调制电路、宽带功率放大、单片机控制系统等模块构成。
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
There are two technique problems for Terrestrial digital TV transmitter: one is the channel coding modulation technique whch is dependent of TV system;
数字地面电视发射机有两大技术难点：一是与制式有关的信道编码调制技术；
There are two technique problems for Terrestrial digital TV transmitter: one is the channel coding modulation technique whch is dependent of TV system;
数字地面电视发射机有两大技术难点：一是与制式有关的信道编码调制技术；
应用推荐