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通讯编程文档 Abstract-The effect of the companding process on QAM signals has been under investigation for the p
Abstract-The effect of the companding process on QAM signals
has been under investigation for the past several years. The
compander, included in the PCM telephone network to improve
voice performance, has an unusual affect on digital QAM data
signals which are transmitted over the same channel. The ...
其他 ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noi
ofdm信道特性
Channel transmission simulator
Channel transmission simulator
％
％ inputs:
％ sig2 - noise variance
％ Mt - number of Tx antennas
％ Mr - number of Rx antennas
％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column
％ is the value of the antenna outputs a ...
其他 Process a binary data stream using a communication system that consists of a baseband modulator, c
Process a binary data stream using a communication system that
consists of a baseband modulator, channel, and demodulator.
Compute the system s bit error rate (BER). Also, display
the transmitted and received signals in a scatter plot.
通讯编程文档 MPEG-4 标准文档 access to visual objects in natural and synthetic moving pictures and associated natura
MPEG-4 标准文档
access to visual objects in natural and synthetic moving pictures and associated natural or synthetic sound for
various applications such as digital storage media, internet, various forms of wired or wireless communication etc.
The use of ISO/IEC 14496 means that motion video can be ...
通讯/手机编程 GNU_Radio GNU radio is a free/open-source software toolkit for and the con
GNU_Radio
GNU radio is a free/open-source software toolkit for and the content is controlled by a handful of organizations. Cell
building software radios, in which software defines the phones are a great convenience, but the features your ...
数学计算 Digital Modulation Techniques are those echniques through which we convert digital signals into anal
Digital Modulation Techniques are those echniques through which we convert digital signals into analog signal which can be transmitted through transmission medium...this program demostrate some of the basics techniques
论文 基于频率插值的4.0kbps 语音编码器的性能和设计（英文）
The 4.0 kbit/s speech codec described in this paper is based on a
Frequency Domain Interpolative (FDI) coding technique, which
belongs to the class of prototype waveform Interpolation (PWI)
coding techniques. The codec also has an integrated voice
activity detector (VAD) and a noise reduction capabi ...
书籍 Architectures for Baseband Signal Processing
Mobile communication devices like smart phones or tablet PCs enable us to
consume information at every location and at every time. The rapid development
of new applications and new services and the demand to access data in real time
create an increasing throughput demand. The data have to be transmi ...
书籍 Cognitive+Wireless+Network
Cognitive radio has emerged as a promising technology for maximizing the utiliza-
tion of the limited radio bandwidth while accommodating the increasing amount of
services and applications in wireless networks. A cognitive radio (CR) transceiver
is able to adapt to the dynamic radio environment and ...
书籍 High-Frequency Oscillator Design
OSCILLATORS are key building blocks in integrated transceivers. In wired and
wireless communication terminals, the receiver front-end selects, amplifies and
converts the desired high-frequency signal to baseband. At baseband the signal can
then be converted into the digital domain for further data p ...