bit error rate造句
例句与造句
- 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。 - It's difficult to find bit error rate in a sentence. 用bit error rate造句挺难的
- The study conclusions of the dissertation indicated the mixed qr _ rls / lms adaptive equalization with dfe structure can eliminate the isi of communication system and reduce the bit error rate of the system
研究结果表明,采用dfe结构的混合型qr _ rls / lms算法能够消除数传系统中的码间干扰,降低误码率,起到了均衡的作用。 - The structure and theory bit error rate of these schemes are introduced in this thesis . variable spreading gain cdma system is a candidate system that accommodates mixed traffic types , and supports variable data rate service
论文深入研究了cdma中的两种多速率方案，即可变扩频增益方案( ovsf )和多码方案( mc - cdma ) 。 - The matlab simulation result shows that if the bit error rate has the order of 10 - 4 , and 16 - qam constellation modulation is applied , this technology is capable of reducing amplifier optimized output back - off by 7db
Matlab仿真结果表明在误比特率为10 ? 4时,采用16 - qam的星座调制方式,该技术能将放大器的最优回退减小7db 。 - Recently , much interest of the coding community has focused around a new family of error - correcting codes , called turbo codes , whose perfor - mances in terms of bit error rate ( ber ) are close to the shannon limit
Turbo码作为一种新型的纠错编码类型备受通信界的注目，它的纠错能力能够接近shannon极限。 turbo码自1993年由c - Performance simulation of the proposed estimator including mean squares error ( mse ) of channel and uncoded bit error rate ( ber ) have been taken , and the results show the estimator is efficient and very flexible
对信道盲估计的均方误差( mse )和由此算法获得的信道的状态信息，对无编码的ofdm系统进行解一调的误比特率进行了仿真。 - The method is given to solve the problem in adaptive demodulation that adjudgement will worsen when the snr is low . by using the error signals to reduce the demodulated signals , the bit error rate will be improved
仿真中,针对dpsk信号的自适应解调中小信噪比下门限失效的问题,提出了利用误差改进门限判决的方法,将误码性能提高了1 2db 。 - Then , we proposed a new qos protocol , qgr , based on the greedy geographic routing and dynamic source routing . qgr protocol searches the best route for the packet using energy 、 packet delay and bit error rate of manet as qos parameter
Qgr协议是一种qos路由协议,以传感器网络的能量、延迟、位错误率等特征作为qos参数,实现相对于某一种参数最优的路由路径的查找。 - ( 1 ) for wireless physical layers , the efficiency function is defined to quantify the upper layer throughput per unit of wireless resources while maintaining a certain maximum remnant bit error rate subjected to a certain snr
（ 1 ）针对无线物理层，引入效率函数来表征在一定残余误码率ber要求和一定信道信噪比snr情况下，上层应用正确传输的数据量和下层无线资源的关系。 - Conclusions can be made that nlms equalizer is the best among three equalizers in terms of convergent stability and calculating complexity , kalman equalizer is the best among three equalizers in terms of bit error rate
仿真试验结果表明,在这三种均衡器中,从收敛稳定性和计算复杂度上来看最适合的是nlms线性均衡器;从系统误码率上来看,最适用的是kalman线性均衡器,其次是nlms线性均衡器。 - The multipath interference , resulted from interfering between the signals of the line of sight ( los ) and the line of ground reflection in vhf - rc , makes bit error rate of data transmission increased and system reliability attenuated
当前，中国水波中继信道以直视路径传播为主，同时存在地面折射路径对直射信号产生干涉，造成多径干扰。这种干扰使得信号传输的误码率上升，系统可靠性下降。