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Blend various advantages of the coding project of the parameter audio frequencies in the meantime, carried on adjustment on the coder structure, have to a certain signal more the mold piece of coding result, if wave structure analytical transformation short time of the mold piece, double the composition examine and double the transformation short time mold piece etc.

论文针对目前一部分参数音频编码音源模型在高采样率下出现的各种问题进行改进,提出一种而向44.1KHz/48KHz高采样率音频信号的参数音频编码系统,使用了可以有效兼顾码率与音质的多分辨率正弦模型和多分辨率ERB噪声模型。

Analysis of complex transform domain is important method for signal processing.

提出了适于矢量表示的伪彩色编码显示的理论和方法,并根据不同类型的信号变换,实现了相应复变换域的编码显示。

The frequency band of the system and the utility of the power will be optimal.

网格调制编码是将编码与调制相结合,利用信号集的冗余度来获取纠错能力。

There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal.

本发明提供了一种再生方法和设备,用于对与立体声处理所需的被间歇复用在非立体声音频信号的编码信息中的立体声处理必需信息一起传输的编码音频数据进行解码处理和再生。

The system is based on a 'subaudible' tone injected after the audio stages into the transmitter during encode and the tone is detected before the audio circuits in the receiver.

这套技术的基本原理如下,进行编码的时候,一个"亚音"音频信号被注入声音信号,并在接收端的音频电路前检测这个音频信号解码。

The speech semaphore analogs wave form and delivers a speech through IP method and ignore to is a real time appliance a traffic still a non- real time applied traffic, the pass looks shore wants to steer a simulation data convert to the speech semaphore first, is also vs simulation the speech semaphore steer 8 or 6 quantizes, then send go into to buffer store ward amid, the dimension of dampener can be sur the request select of the delay and the encode.

语音信号是模拟波形,通过IP方式来传输语音,不管是实时应用业务还是非实时应用业务,道貌岸首先要对语音信号进行模拟数据转换,也就是对模拟语音信号进行8位或6位的量化,然后送入到缓冲存储区中,缓冲器的大小可以根据延迟和编码的要求选择。

The speech signal is a analog one, and we can perform its digital transmission by sampling, quantizing and coding.

话音信号是一个模拟信号,通过采样、量化和编码,我们可以实现话音信号的数字传输。

A design and implementation method of the high speed modulation system, which adopted the new techniques of the FPGA and DAC based communication system,is presented in this paper. The effect of the key techniques of this system, such as the high speed digital signal processing for modulation, high speed based-band signal conversion, wide-band modulation, carrier suppression, high frequency and high precision system clock generation, is analyzed, and the solutions and performance analysis is also given. Finally, a high speed modulation system for space applications is implemented, can be used for high speed data transmission with QPSK, 8PSK, QAM or other kinds of digital modulation.

本论文依据正交调制原理,采用基于FPGA和DAC的设计技术,提出了一种高速、灵活的调制系统的设计方法,重点分析了系统组成的调制编码映射、基带脉冲信号转换、信号滤波、调制、系统时钟产生等关键技术环节的影响,解决了高速调制信号处理、高速数据转换、宽带调制、载波抑制、高频率高精度系统时钟的产生等关键技术问题,完成了一种适用于空间应用的高传输速率、多进制数字调制方式和调制体制灵活的数据传输调制系统的设计与实现,可在硬件设计不变的情况下,实现QPSK、8PSK和16QAM等多种调制方式的高速数据传输,QPSK调制速率达到500Mbps。

Firstly, we simulate the signal received by OTHR according to the real working condition, and then save the signal data in file. Secondly, we develop the signal processing program and the visual users interface. Finally we compare the performance of these two kinds of OTHR system.

本文首先根据OTHR的工作环境模拟其回波信号,并将其保存为数据文件;编写信号处理程序,并给出可视化用户界面;最后利用OTHR仿真系统,对二相编码连续波和线性调频连续波这两种信号体制的OTHR作性能分析。

Gigabytes. The motion picture on the videodisk is encoded as frequency modulation, and the audio signal is mixed with the video signal.

视频盘上的视频信号以调频方式编码,音频信号混入视频信号中。

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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。