并由此模型设计了一个四信道模拟系统。
Then, a simulation system of realizing four channels receivers, from the model, is designed.
测试低轨卫星移动通信信道模拟器的硬件性能。
Test the specification of the LEO satellite communication channel simulator.
本课题所做的是一个数字信道模拟器控制台的软件设计。
The subject is a software design of digital channel simulator console.
本文利用DSP和FPGA完成了一种可编程实时信道模拟器。
A programmable real-time channel simulator integrated with DSP and FPGA is presented.
很多国家在建立了低轨卫星系统的同时，进行了卫星信道模拟器的研究。
Many countries get to research satellite communication channel emulator while building up low-orbiting satellite communication system.
这些都将为下一步在硬件平台上实现低轨卫星移动通信信道模拟器奠定了基础。
All these will afford more detailed theoretical basis for further studying and simulating low-orbit satellite mobile channels simulator in the hardware platform.
此外，本文还对卫星移动通信信道模拟器进行了分析，并提出了其初步整体设计方案。
In addition, the paper also analysis mobile satellite communication channel simulator, and gives its initial general design.
根据电离层影响无线电波传输的有关理论，本文设计并实现了一种基于DSP的话音带宽短波信道模拟器。
In this paper, a DSP-based HF channel simulator within audio bandwidth is designed and implemented based on the concerned theory on the effects caused by the ionosphere in radio wave.
同时，信道模拟器的硬件实现可以为卫星通信系统的工程设计提供强有力的调试手段，具有十分重要的意义。
Meanwhile, the implementation of the channel simulator is so significant that it can provide a strong debug method for the system design and testing.
设计测试案例，利用信道模拟机模拟高速环境下的多普勒频移，设置不同多普勒频移值，测试GPRS丢包率。
Design test case, using the channel simulator simulated doppler-shift under high speed environment, by establishment different value of doppler-shift, tests the package lose rate of GPRS;
在射频频段进行信道模拟的真实性较高但较复杂，在基带进行的信道模拟在复杂度降低的同时，影响了真实性。
According to the well developed Radion Frequency (rf) simulation, the complexity of Base Band (BB) simulation degrades, but unfortunately, the performance degrades too.
提出基于快速傅立叶交换的连续信道的计算机模拟。
The computer simulation of continuous channels based on the algorithm of FFT is proposed.
该文研究了基于数据模拟方法和HMM（隐马尔科夫模型）自适应的电话信道条件下语音识别问题。
This paper addresses the problem of speech recognition under telephone channel conditions using data simulation method and HMM(Hidden Markov Model)adaptation.
纯导频方式是采用专门的信道发生器模拟出纯粹的导频信号。
The way of pure pilot-frequency is one that adopts dedicated-channel generator to simulate pure pilot signal.
一种数据信道，其传输的信息可取该信道规定界限内的任何值。话音信道就是模拟信道。
A data channel on which the information transmitted can take any value between the limits defined by the channel. Voice - grade channels are analog channels.
双音多频是一种在话音信道用音调来表示数字的方法，它可以用来在模拟话音信道传输信令，因此在通信中有广泛的应用。
Provide is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
系统模拟了从信号的产生，在空间信道中的传输，天线的接收，到最后恢复出信号源的整个过程。
The system simulates the whole course from the signal generating, transmitting in the channel, being received by antennas to the signal rebuilding.
在分频多任务（用于模拟讯号），信道切割成次信道，每个信道具有不同的频率宽度，指定给特定的讯号。
In FDM (typically used for analog signals) the channel is subdivided into subchannels, each with a different frequency width that is assigned to a specific signal.
模拟结果表明，该方法比一般的载波干扰比功率控制方法性能更优，可获得更低的误码率和更高的信道容量。
Compared with conventional power control method utilizing carrier to interference ratio, the simulation results show that it can achieve lower bit error ratio and higher channel capacity.
在数字移动通信信道模型上，利用计算机模拟，在均方误差和误码率特性方面与其它均衡器算法进行了比较。
On a digital mobile radio channel model, using computer simulation, we compare the SWFTF DFE algorithm with other equalizer algorithms in the characteristics of mean squared error and bit error rate.
模拟结果表明引入子载波分组后系统性能依然保持良好，并且信道估计偏差对本算法的影响较小。
Simulation results show that subcarrier grouping just has a little influence on system performance. Meanwhile the imperfect channel estimation has little effects on the present algorithm.
数值模拟表明信道容量与衰落程度和分集的性能有关。
The numerical simulation results show that channel capacity will be affected by fading severity and diversity performance.
文章叙述了其编码方法以及在模拟干扰信道情况下的纠错效果。
This paper introduces the coding method as well as effects of error correcting during disturbances in the message channel of the simulation.
所述前端电路包括用于将所接收的数字信号转换为多个模拟网络中被选择的一个的多个可编程信道电路。
The front end circuits comprise a plurality of programmable channel circuits for converting received digital signals into selected one of a plurality of analog network.
论述了电力线信道上脉冲干扰的特性，运用概率论推导出存在脉冲干扰时求解敖据帧长度的数学模型，并进行了仿真模拟验证。
This paper discusses the nature of the impulsive interferences with on the power line channels, and presents a model for finding a frame length and a simulated example using probability.
传统的模拟指令和数字指令的无线传输采用不同的信道机分别传输。
Usually the analog signal and digital signal will be transferred through different wireless channel in firepower control system.
信道化接收机可以满足这些要求，但传统的模拟信道化接收机存在相位非线性和各信道间幅度增益不一致等缺点。
The channelized receiver covers these characteristics, but the traditional analog channelized receivers have the limitations, that is phase non-linearity, the amplitude gain non-consistent and so on.
在数字移动通信信道模型上，利用计算机模拟，在均方误差和误码率特性方面与其它均衡器算法进行了比较。
On a digital mobile radio channel model, using computer simulation, we compare the SWFTF DFE algorithm with o...
双音多频(DTMF)是一种在话音信道用音调来表示数字的方法，它可以用来在模拟话音信道传输信令，因此在通信中有广泛的应用。
Provide (DTMF) is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
随后，我们模拟了不同参数条件下(信道模型、码道数目、天线数目)这几种算法的性能，并与理论分析进行对照，得出一定结论。
Then we simulate their performance in different occasions, such as channel model, burst number and antenna number. Combing theory analyses and simulation results, we give some conclusion.
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