Design and realization of bit error ratio tester based on fpga 的误码率测试仪的设计与实现
In addition , the b3g test platform supports the bits error ratio ( ber ) test B3g测试平台还提供了误码率测试的功能。
Bit error ratio 误码率,误比特率
However , adaptive equalization technique can decrease the effect of isi and noise , reduce the bit error ratio and trace time - changing channel 而自适应均衡技术可以降低码间干扰和噪声的影响,减少误码,并能够跟踪时变信道,解决时变波形的严重失真问题。
Through theoretically analyzing the hsnr condition for our algorithm to be applied , we relate the correct classification probability and bit error ratio of demodulation 通过理论分析“大信噪比”近似成立的条件,把调制分类性能与信号解调的误码串联系在一起。
The data captured by b3g test tools is used for debugging the module and analysing performance . in addition , the b3g test tools support bits error ratio test based on pseudo - random number B3g测试工具还利用了伪随机( pn )序列对整个系统进行误比特率( ber )的测试。
Although bluetooth adopts frequency hopping to avoid interference , its bit error ratio will rise sharply when there are strong interference in the selected frequency band 尽管蓝牙采用跳频方案来避免干扰,但是当所选择的跳频点上干扰较强时,蓝牙系统的误码率会受到很大的影响。
This paper makes following works . first , the algorithm of fragmenting data packet was put forward according to bit errors ratio . second , the fragmentation data algorithm was used in asymmetry tcp 第二,根据有基站无线局域网的特点,将最优的数据包分割应用于有基站的非对称的tcp协议。
With this inner concatenated codes , the performance of ber ( bit error ratio ) and system capacity can be controlled by adjusting the dimension of stbc ( space - time block codes ) in the inner concatenated codes according to the channel parameters 这种编码方式可以在既定的发射天线数下,根据信道环境的优劣,通过调整内接码中空时分组码维数来控制系统误码率性能和系统容量。
But compared with wired network , the shortcomings of wireless network are : 1 data transmitting with high bit errors ratio ; 2 move equipment usually powered by battery , so the energy is limited ; 3 the bandwidth of communication is narrow compared with wire networks 但与有线网络相比,无线局域网的缺点是: 1 、数据的出错率高; 2 、移动设备通常依靠电池供电,能源有限; 3 、通信的带宽窄。本文做了以下几方面的工作。