信道噪声

HFC接入网技术及其信道噪声分析

Analysis of HFC access network and its channel noise

在介绍了Turbo码的基础理论后，设计了对大气信道噪声的Turbo码的编码方案。

We have designed to the atmospheric channel noise Turbo code scheme , after introduced the Turbo code basic theory .

有线电视双向HFC网络上行信道噪声分析

Noise analysis in up link channel of two-way HFC network for CATV

HFC接入网中多址接入技术与信道噪声特性的关系

Relationship Between Multiple-address Technique and Noise Characteristics in Channel in HFC Access Network

HFC网上行信道噪声干扰与通道拥塞的解决方案

The Resolution Scheme for the Noise Interference and the Congestion of HFC Upstream Channel

HFC网络上行信道噪声对通信的影响及其对策

Influence of noise in upstream channel of HFC network on communication and its countermeasures

通过模拟存在信道噪声的情况下，采用Lorenz系统用参数调制进行信号传输，证实了时滞反馈同步的抗噪优越性。

By simulating Lorenz system parameter modulation signal transmission through the channel existing noise , we can see the noise reduction advantage of time lag feedback chaos synchronization .

以相关数学公式以及物理定律为依据，对有线电视双向HFC网络上行信道噪声模型进行了理论推导，提出了解决噪声干扰的办法。

Based on the related mathematical formulas and physical laws , the noise models in the upstream channel of HFC networks are derived . The paper presents one method to solve the noise interference .

而且进行噪声估计无需检测语音间隙，无需VAD的运算过程，克服了单信道噪声压缩算法的缺点。

The speech enhancement system requires neither speech pause detection for noise estimation nor VAD ( voice activity detection ), and overcomes disadvantages existing in single channel noise suppression algorithms .

论文对HFC-CATV上行信道噪声特性和抗干扰技术进行了研究。

The noise characteristics and the anti-interference techniques of the HFC-CATV upstream channel are studied in this thesis .

分析HFC网络上行信道噪声来源与形成机理，提出了从HFC网外屏蔽和网内纠错降噪的一整套解决方案。

The noises sources of upstream channel in HFC network and its mechanism of formation is analyzes . In this paper based on the analysis , a resolution which tries to screen the noises outside the network and reduce the noises by putting right inside the network is proposed .

分析结果表明，这个ARQ系统在信道噪声高，信道往返延迟大时，仍具有很高的通过率及很高的可靠性。

The results show that the throughput efficiencies of this scheme both with infinite receiver buffer and finite receiver buffer are higher than other ARQ schemes and the reliability is higher too than other ARQ schemes when the channel is noisy and the round trip delay is large .

电子测量仪器信道噪声的对消

On the Noise Silencing in the Channel of Electronic Measuring Apparatus

过取样的空闲信道噪声及其消除

The Idle Channel Noise of Oversampling Process and its Elimination

低压电力线信道噪声环境下捕获算法的改进

Improved Acquisition Algorithm in Low-voltage Power Line with Channel Noise

低压电力线通信信道噪声特性的测试与分析

The measurement and analysis of noise characteristics in low voltage power line communication channel

在量子系统中，信道噪声主要源于消相干效应和量子门的不精确性。

In quantum system , noise primary results from decoherence and imperfect quantum gates .

同轴电缆网络上行信道噪声漏斗效应及其对调制技术的影响分析

Noise funneling and its influence on modulation scheme in the return path of cable network

通过增加信号／滤波器的维数，可以容许更强的信道噪声。

Because of increasing dimension of signal / filter , it can suffer stronger signal noise .

电力线信道噪声干扰是影响电力线通信的主要因素。

The power line channel noise is the main factor in affecting the power line communication .

信道噪声是量子计算、量子通信和量子密钥分配都必须克服的一大障碍。

One obstacle that quantum computation , quantum communication and quantum key distribute must combat is noise .

在综合考虑了由于量化噪声和信道噪声引起的失真等因素后，建立了一个端到端的率失真函数。

An end-to-end rate distortion function was established considering the distortion caused by quantization and channel noise .

其次，分析射频识别系统基带信号与频带信号的特性，以及信道噪声与干扰的特点，指明信号的潜在影响因素。

Secondly , the characteristic of baseband signal and frequency band signal in RFID system are analyzed .

仿真结果表明，在信道噪声是非高斯的情形下，序贯蒙特卡罗滤波的跟踪性能更优越于扩展卡尔曼滤波。

Simulation results show that the proposed tracking method offers better tracking performance than extended Kalman filter algorithm .

本文研究混沌系统同步的抗信道噪声和参数失配干扰优化设计问题。

This paper studies optimal design to resist the interference of channel noise and non-matching parameters for the synchronization of chaotic systems .

作为应用的实例，讨论了在没有信道噪声和畸变的情况下，在基于混沌的通信系统的信息信号的恢复。

As an application example , we discuss the information retrieval in chaos-based communication systems in the absence of noise and distortion .

影响因素主要包括：调制方式、信道噪声、编译码算法、码长和译码迭代次数等。

The influencing factors include : the modulation type , channel type , encoding and decoding algorithms , code length , and decoding iterations .

本文提出在设计信源量化器和重构器的初始阶段，把信道噪声的影响考虑进去。

In this thesis , a new code method is presented , which takes the affect of-channel noise in the beginning of designing the quantizer and reconstructor pair .

克服量子信道噪声的编码就称为量子信道编码，实用的量子信道编码包括量子纠错码和量子避错码。

The code that combat noise is named quantum channel coding . Both quantum error correcting code and quantum error avoiding code are practical quantum channel coding schemes .

基于多径干扰、多址干扰和信道噪声的机理分析，推导了计算平均差错概率的有效近似公式。

An efficient approximation for expressions of the average error probability are developed based on considering the effects of multipath interference , multiple access interference and channel noise .