low-rate code 低信息率码
low code rate 低码率
very low code rate 甚低码率
low error code rate 误码率低
Low-bit-rate speech code 低速率语音编码
We repeat the rate 31/200 LDPC code for 10 times and get a rate 31/2000 low rate code. Comparing with our low rate code with CT algorithm decoding, the simulation shows it has 2dB better performance.
LDPC码在高码率( > 0.1)时性能很好,我们将码率为31/200的LDPC码经10次重复后得到码率为31/2000的低码率码,与CT算法比较,仿真结果显示,CT算法差约2dB ,这是因为CT算法为硬判决算法而LDPC使用了软判决译码算法。
参考来源 - 相关攻击在可靠通信中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Moreover, the bandwidth is a very limited and precious resource. And the low code rate speech codes is one of the important methods to be economical bandwidth.
信道带宽是非常有限和宝贵的资源，而低码率语音编码技术是节省带宽的重要方法之一。
Due to the limit of response speed of the present single-photon detector, the code rate is still too low to come into practical use for the present quantum key distribution (QKD) system.
由于单光子探测器响应速率的限制，目前的量子密钥分配系统的码率很低，限制了它的实际应用。
Because of using the technology of Vector Quantization, the rate of the code is low.
由于利用了矢量量化技术，所以该编码速率较低。
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