In order to enhance anti - electromagnetic interference and decrease bit error rate , on the design of military transceiver it ’ s very important to use the optimize project 在某战术电台的研制过程中,为提高电台抗干扰能力,减少数据传输的误码率,对电台解调dsp单元模块的优化设计就显得尤为重要。
Through secrecy communication contrast the time series with disperse in the hyperchaotic system ; more discuss its some problem such as modulation and demodulation , anti - jamming and bit error rate 通过时间连续与离散的超混沌保密通信对比,进一步讨论超混沌通信过程中的调制解调、杭干扰和误码率问题。
The results reveal that the ocdma systems with fbgs based encoder / decoder are not only easy to plan , but also have large number of simultaneous users , high power efficiency and low bit error rate ( b er ) 结果表明,基于fbg编解码器的ocdma系统具有设计简单、用户容量大、功率效率高和误码率( ber )低等方面的优点。
We discuss the bit error rate of the convolutional code , turbo code encoder and decoder theory as well as the performance in awgn channel and rician channel , and present the result of simulation 讨论了rs与卷积码级联的误码率问题, turbo码的编译码原理及其在awgn信道和rician信道中的性能,并给出了相应的仿真结果。
Simulation results show that the interleaver compromises the advantages and the disadvantages of block interleaver and semi - random interleaver , which decreases the bit error rate of turbo codes of long data frame 仿真结果表明,其折衷了分组交织器和半随机交织器的优缺点,降低了turbo码在长数据帧情况下的误码率。