该模型支持采用自适应调制和编码(AMC)的多速率非理想信道,而AMC在无线网络中是增加有效传输率的关键技术。
The model supports the multi-rate non-ideal channel using adaptive modulation and coding (AMC), which is the key feature in the wireless networks to increase the effective transmission rate.
本文研究了一种新型混沌编码的脉冲位置和相位复合调制的脉冲压缩雷达信号。
In this paper, a new Chaotic Pulse Position and Phase Coded Pulse Compression Radar (CPPPC PCR) signal is studied.
开发高效的编码、调制以及信号处理技术成为提高无线频率效率的必然手段和当务之急。
To develop highly efficient coding, modulation and signal processing technologies is becoming the most necessary measure to realize these demands.
本文针对远程水下信道和MFSK调制的特点,提出了一种新的频率分组编码(FGC)方法。
Based on the characters of long rang underwater acoustic channels and MFSK modulation, a new Frequency Group Coding (FGC) method is proposed in this paper.
本文论述了一种基于软件无线电的甚低频低码率语音数字岩层通信机,它采用了QPSK调制和FEC信道编码技术。
This paper deals with a digital speech communicator of very low frequency and low bit digital communication based on software ratio, which USES the technique of QPSK and FEC coding.
文中一个新的调制方案是把网格编码和CCK调制结合起来提出来的。
In this paper, a new modulation scheme which combines the grid coding with the CCK modulation is proposed.
该系统主要采用小灵通基带芯片ML7338(ARM7TDMI核)和RDA5206射频模块,实现对射频信号的解调,同时对基带信号重新编码再调制发射,很好地解决了普通直放站射频干扰问题。
The ML7338(ARM7TDMI core) and RF module RDA5206 are used to demodulate RF signals, recode, remodulate and transmit baseband signals, thus solving the RF interference problem in traditional stations.
发射端分集、编码和调制结合空时格码,可以有效地提高信号在无线衰落信道中传输的有效性和可靠性;
Space-time trellis code combining space diversity with code and modulation, can improve efficiency and reliability of communication system in wireless channel efficiently.
激光信息场应用系统主要由调制编码和接收解码两个基本部分组成。
The application system of laser information field mainly consists of two basic parts: modulation encoding and reception decoding.
在发送端,主要研究了差错控制编码,波形成形、扩频和8PSK调制等关键技术;
On the sending end, the paper focuses on Error Control Coding, Waveform Shaping, Spread Spectrum and 8PSK modulation, etc.
本文研究了超宽带通信中的编码和调制技术。
In this thesis, the coding and modulation techniques in UWB communications are studied.
文章介绍一种将PAM脉冲幅度编码转换为PW M脉宽调制编码的方法和电路,转换过程使用数字方法实现。
This article relates to a method and circuit for the code translation from PAM to PWM. The process is digital.
在对加密算法实现过程进行可行性研究和分析的基础上,阐述了应用adpcm编码调制技术和UDP协议进行网络环境下实时多点语音通信的方法。
Based on the feasibility study and the analysis to the encryption algorithm, the paper presents a method of the real-time multi-point voice communication in network, which USES ADPCM and UDP.
通过键盘及代码生成电路、编码、脉冲调制振荡和红外发射构成红外发射电路。
Through keyboard and code generation circuit, coding and pulse modulation vibration with infrared project to form infrared project circuit.
长处 得当的均等太过编码和传布光谱是和得当的均等一个调制解调器提供高度没有带宽效率的任何失败,数据评估。
The advantage of adaptive equalization over coding and spread spectrum is that a modem with adaptive equalization provides high data rates without any loss in bandwidth efficiency.
信道编码采用了典型的内外层编码技术和QAM调制技术。
Channel coding USES the classic outer, inner coding structure and QAM.
提出一种新的结合多级编码和差分空时调制的联合编码调制方案。
To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.
我国是《商品名称和编码的协调制度公约》缔约国。
China is a contracting party to the International Convention on the Harmonised Commodity Description and Coding System.
该系统由数字控制器、脉宽调制波形显示电路、全桥变换器、直流电动机和光电编码器。
The system consists of a digital control system, a PWM control waveform display, a full-bridge converter, a DC motor and load motor.
基于OFDM(正交频分复用)系统,提出了一种新的空频时三维编码,将网格编码调制和差分空时分组码进行组合链接设计。
Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.
然后详细阐述了连续相位调制器分解模型,该模型可以分解为一个线性连续相位编码器(CPE)和无记忆调制器(MM);
Secondly, a decomposition model of CPM system is elaborated, which shows that a CPM system can be decomposed into a continuous-phase encoder (CPE) and a memoryless modulator (MM).
网格编码调制(TCM)技术是一种将卷积编码和调制结合在一起的技术。
The invention relates to a neural network demodulating method based on the trellis encoding and modulating (TCM) technology which combines the convolutional encoding with the modulating.
在此基础上设计了蓝牙语音编码实验,涵盖了脉冲编码调制的抽样、量化和编码整个过程。
Based on them, a speech encoding experiment used by bluetooth is designed, and it covers the total process of PCM from sampling, quantization and encoding.
介绍DAB发射机系统的基带部分即COFDM信道编码和COFDM调制的设计方法,对相关过程做了阐述。
The article introduced the design method of the baseband which is made up of COFDM channel coder and COFDM modulator of DAB transmitter.
《商品分类和编码协调制度》,H。
《商品分类和编码协调制度》,H。
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