The error-rate performance of the high-speed QPSK digital satellite communication system with cochannel large capacity FDM-PM signal interference is studied by means of computer simulation.
本文用计算机模拟的方法研究高速QPSK数字卫星系统受大容量FDM-FM信号同波道干扰时的系统误码特性。
By simulating the modulation process using MATLAB, the influence of different power spectrum estimation algorithm to the bit-error-rate performance of the demodulation technique is analyzed.
通过Matlab仿真了调制解调过程,分析了三种功率谱估计算法对解调误码性能的影响。
A computer simulation system is constructed, which is suitable for studying the error-rate performance of the high-speed QPSK digital satellite communication system under interference and noise.
构成了适合于研究干扰和噪声条件下高速QPS K数字卫星系统误码特性的计算机模拟系统。
Computer simulation shows that the improved algorithm has better convergence performance than the conventional algorithm. It can speed up convergence rate and decrease state residual error.
经计算机仿真表明,新算法与原算法相比,收敛性能有所改善,收敛速度加快,稳态剩余误差减小。
Again, Tomcat's performance deteriorated drastically at about 600 users, while the NIO-based server's error rate remained relatively low.
同样,在大约600个用户时,Tomcat的性能急剧下降,而基于NIO的服务器的错误率保持相对较低。
Almost every role has a measurement of success - customer satisfaction, time to complete a task, volume of activity completed, error rate or even internal performance measurement rankings.
几乎每一个职位都有衡量成功的标准——客户满意度,完成任务的时间,完成的工作量,错误率甚至是内部绩效排名。
Simulation results show that compared with fixed training interval schemes, the improved algorithm can achieve better BER (Bit Error Rate) performance while keeping lower system overhead.
与采用固定训练周期相比,该方法可以在保证比较低的导频开销的同时,使系统获得更好的误比特性能。
Power spectrum of GMSK and transmit eye patterns and bit error rate performance is given.
给出了GMSK信号的功率谱曲线,传输眼图与误比特率性能。
Experimental results show that phonetic classification based on the triphone can greatly improve system performance. The proposed method reduces the error rate by 28% compared with a baseline system.
实验表明:基于语音学分类的三音子单元对识别性能有明显的改善,系统的首选误识率相对基线系统降低了28%。
This paper proposes an improved adaptive interleaving scheme that not only achieves a better system performance, especially the frame error rate (FER), but also reduces the algorithm complexity.
该文提出了一种改进的自适应交织技术,不仅进一步提高了系统性能,尤其是系统的误帧率性能,而且使算法实现的复杂度有所降低。
Power allocation is adopted in the scheme to achieve better bit error rate (BER) performance and higher power efficiency.
最后引入功率配置来进一步改善系统误码率性能和提高功率效率。
The simulation results show that the proposed method ensures Bit Error Rate (BER) performance and the cost of the feedback link, and the system throughput is improved effectively.
仿真结果表明,所提出的方法在保证反馈链路开销与系统误码性能的情况下,有效地改善了系统吞吐量。
The performance of synchronization tracking using pilot is analyzed, followed by a numerical method to determine the optimal lock loop parameters to minimize average bit error rate (BER).
分析了利用导频同步跟踪的性能,以及提出了一个数值方法确定最优环路参数以最小化误码率。
JTIDS has a good performance on bit error rate, it can tolerate a quite high information lose rate.
联合战术信息分布系统(JTIDS)具有良好的系统性能,能容忍比较高的信息丢失率。
System performance is evaluated by bit error rate (BER).
系统的性能由比特错误率(BER)来衡量。
Unlike other proposals, this mechanism takes the impact of wireless packet error ratio (per) on the packet size adjustment and performance of rate control into consideration.
与其他方案不同,该机制进一步考查了无线包错误率对包长调整和速率控制的影响。
This Recommendation defines error performance parameters and objectives for international digital paths which operate at or above the primary rate.
本建议定义一次群速率和一次群速率以上国际数字通道的差错性能参数和指标。
Simulation results show that the technique can provide better image signal-to-noise rate performance over different bit error rates wireless channels.
在不同误码率的无线信道中的传输实验表明,此方案提供了更好的图像信噪比性能。
An optimal subband rate allocation algorithm in mean-squared error (MSE) minimization sense was proposed, which achieves persistent optimal rate-distortion performance under any given rate constrains.
提出均方误差最小意义上的最佳三维子带码率分配算法,该算法在任意给定码率限制条件下都能获得最优率失真性能。
Performance analysis shows that the decision arrangement can improve the bit error rate (BER) performance of the detector.
性能分析表明,判决排序改善了检测器的误码性能。
The simulation of error bit rate performance for multi -channel and frequency -selective Rayleigh fading is carried out, and the simulation results show that the system is.
对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真,其结果表明系统是可行的。
The relation between error rate and system-caused parameters determines the performance and reliability of a recording system.
本文描述了误码率与系统原因参数之间相互关系,并据此确定记录系统的性能和可靠性。
The performance of minimum mean square error (MMSE) adaptive detector applied in CDMA system is analyzed in this paper. The signal model is set up, and the relevant bit error rate formulas are given.
文章主要分析了最小均方误差(MMSE)自适应检测器应用于CD MA系统的性能,建立了系统信号模型,给出了计算误码率的公式。
Analysis in theory and simulation results show that the performance of error rate (per) of the proposed PPM-DIFF-UWB receiver outperforms the traditional PPM-TR-UWB receiver.
理论分析和实验仿真结果表明该接收机的误码性能优于常规的PPM - TR - UWB接收机。
This Recommendation defines error performance parameters and objectives for international digital connections operating below the primary rate of the digital hierarchy.
本建议规定了工作在低于数字系列的一次群速率的国际数字连接的差错性能参数和指标。
Experiment results show that feed-forward backpropagation network achieves the best performance, which reduces average error rate by54.4%.
实验结果表明前馈后向传播网络的性能最好,与基准模型比较平均错误率下降54.4%。
This error indicates that the test controller was not able to collect performance counter results from all the computers in the specified sample rate for the load test.
这个错误表示测试控制器无法以负载测试的指定取样率,从所有电脑收集效能计数器结果。
The results show that while introducing smart antenna technology in wireless telemetry systems, it can efficiently raise signal-to-noise ratio and improve bit error rate performance of the system.
结果表明,在无线遥测系统中采用智能天线技术,能够有效地提高系统的信噪比,改善系统的误码性能。
Simulation results show that the system has the ideal bit error rate performance and the high capability of multi-access interference, thus having a broad application future.
文中对新构建系统的误码率性能进行了分析,仿真结果表明,该系统具有理想的误码率性能,抗多址干扰能力强,具有非常广阔的应用前景。
The result shows that this algorithm is better than that of constant bit rate distribution on the performance of error rate in the addition of reducing the transmission power of system.
结果表明,该算法在误码率性能上明显优于等比特分配算法,也减少了系统的传输功率。
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