The results show that the performance of BER of coded system has a large improvement versus uncoded one when the two systems have same code length;
结果表明：如果两系统使用相同码长的光地址码，则经过纠错的编码系统同未经过纠错的编码系统相比，其误码率有了明显的改善；
The performance of BER of the proposed SC-FDE system overcomes adaptive OFDM system with one bit per subcarrier CSI feedback in the same conditions.
与一比特信道状态信息回馈的自适应OFDM比较，自适应SC-FDE系统误码性能更好。
This paper analyzed the performance of traditional receiver of TR-UWB, and effect of noise-on-noise item by BER form.
文章分析了传统接收机的系统性能，从误码率公式上分析了噪声乘噪声项带来的严重影响。
The numerical results show that the theoretical BER performance of wideband CDMA system can be improved effectively by this scheme.
数值结果表明，采用这种方案能够有效地提高宽带CDMA系统的理论BER性能。
Analysis result shows that this scheme can improve the BER performance, and thus enhance the system capacity of FFH OCDMA.
结果表明。该方案能有效地改善FFHOCDMA系统误码率的性能，可增加系统的容量。
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。
The BER performance of FDDD is affected by the channel coherent bandwidth and coherent time at the same time, and it is more sensitive to the change of channel coherent bandwidth.
频域差分检测的误码率性能同时受到信道相干时间和相干带宽变化的影响，并且相干带宽对频域差分检测的影响更大。
Analysis result shows that RS code can improve the BER performance of OCDMA greatly, which will increase the reliability of OCDMA system.
分析结果表明，RS纠错码能有效改善OCDMA系统的误码率性能，提高了OCDMA系统的可靠性。
In this paper, we analyze the BER performance of pilot symbol assisted two-dimensional spread spectrum systems with coherent demodulation in multi-path fading channels.
在多径衰落信道中，本文分析了导引辅助的二维扩频相干解调的误码率性能。
The bits error ratio (BER) of the system is analyzed theoretically, and the probability to improve the performance by using the hardware-limit is evaluated.
对系统的误码性能进行了理论分析，并讨论了在系统中加入硬件限幅器以提高系统性能的可能性。
Finally, two typical jammings, narrowband jamming and broadband blocking jamming, were designed and added into the system, and then the BER performance of the system was simulated.
最后，设计了两种典型的压制式干扰：窄带瞄准式干扰和宽带阻塞式干扰，并将干扰加入系统中仿真了系统误码性能。
Simulation results show that within the limited increase of conditions complexity, both algorithms are effective to improve the accuracy of channel estimation and improve BER performance.
仿真结果表明，在增加有限复杂度的条件下，这两种方法都有效的提高了信道估计的准确性，并改善了系统误码性能。
In the paper, we introduce the structure of frequency -domain equalizer and its design. its BER performance are also studied.
介绍了分组传输系统频域均衡器的结构和设计方法，并研究了其误码率（BER）性能。
The results suggest that the BER performance of DSSS communication system has close relationship with the chip wave-shaping and is consistent with MRCE (Maximal Ratio Combining Efficiency).
分析计算结果表明，直扩系统的误码性能与码片波形的选择密切相关，并且与扩频码片的最大比合并有效性是相一致的。
They are compared with the performance of PAPR and BER. The results indicate that the performance of direct wideband mode is better than the other.
从两种方案的PAPR，不同收发模式下的系统性能进行了比较分析，得出直接宽带模式性能优于多载波模式。
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 BER can be significantly reduced by means of using a partially coherent source beam, so the performance is improved.
采用部分相干光作为激光光源，可以减小系统误码率，提高系统性能。
The corresponding simulation and analysis shows that the new criterion does help reduce the average number of decoding iteration and the time delay while the BER performance is almost not degraded.
经仿真验证，该准则在译码性能几乎没有下降的同时，有效的减少了平均迭代次数，降低了时延。
According to the complicated time varying property of the satellite mobile communication channel, the BER performance of SCTCM in this kind of channel is analyzed and an upper bound is given.
并结合具体的卫星移动通信信道的复杂时变特性，对SCTCM在该信道下的误码率(BER)性能进行了理论分析，给出了误码率的一个上界。
Simulation results demonstrate the validity of theoretical analysis and the multi-parameter optimal solution is proved, and the superiority of BER performance is also proved.
仿真实验结果验证了理论分析及参数优化解的有效性，以及多参数优化误比特性能的优越性。
In view of the poor BER performance of the existing algorithms, MIMO detection algorithms for LTE FDD uplink are deeply studied in this thesis.
针对已有检测算法误码率性能较差的问题，本论文深入研究了LTEFDD上行链路中的MIMO检测算法。
In order to improve the BER performance of the relay network, joint network coding and channel coding can be used in the relay node, which has been received much attention during the past few years.
为进一步改善基于网络编码的无线中继系统的误比特（BER）性能，可在中继节点处采用联合网络—信道编码方法，这也是近年来的研究热点之一。
Droplet distribution of the fuel spray inside a diesel combustion cham-ber has an important influence on engine performance.
燃烧室内燃油雾场的分布状态是影响柴油机性能好环的重要因素。
Results of the performance analysis show this scheme provides more benefit of diversity to overcome fading than the conventional single antenna RAKE receiver, and so gets better BER performance.
数值分析结果表明，该方案在单天线RAKE分集基础上进一步增强多径分集效果，能较大地改善误码率性能和提高系统的抗衰落能力。
Based on the model, the BER Bit Error Ratio performance is analyzed for narrow-band modulation and wide-band spread -spectrum modulation of coherent PSK Phase Shift Key...
结果表明移动卫星信道中存在的多径和阴影现象使系统的误码性能恶化，而采用宽带扩频调制则可极大改善系统的性能。
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。
Due to the complexity of the composite fading channel, a new simplified channel model is proposed to analyze the bit error ratio(BER)performance of the distributed antenna system(DAS).
针对复合衰落信道的复杂性，提出了一种简化的信道模型来研究分布式天线系统的误比特率性能。
The BER performance of rate 2/3 trellis coded 8DPSK OFDM over time dispersive channels is simulated. The design of trellis codes at different carriers numbers of OFDM is discussed.
对码率2 / 3格形编码的8DPSKOFDM在时间色散信道中的误码率性能进行了分析和模拟，讨论了不同正交载波数情况下格形编码的设计。
MRCE can be used as a performance measure for chip waveforms. For this reason, the BER performance of different chip waveforms can be qualitatively analyzed through comparing their MRCE.
最大比合并有效性可以作为衡量码片波形性能的尺度，通过比较各种扩频码片波形的最大比合并有效性来对其误码性能进行定性分析。
MRCE can be used as a performance measure for chip waveforms. For this reason, the BER performance of different chip waveforms can be qualitatively analyzed through comparing their MRCE.
最大比合并有效性可以作为衡量码片波形性能的尺度，通过比较各种扩频码片波形的最大比合并有效性来对其误码性能进行定性分析。
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