实验结果表明，该方法能更加接近目标码率，并获得更高的视觉质量和PSNR。
As shown in experiments, the proposed algorithm achieves a bit rate closer to the target, and provides an improved visual quality and the higher PSNR.
对于视频通信来说，由于通信带宽有限，必须将码率控制在一定的范围，以达到在给定目标码率的条件下，尽可能达到高质量的解码图像。
Since the bandwidth is limited in video communications, we must control the bit rate in a certain range to improve the quality of decoded pictures under the predefined target bit rate.
实验结果表明，与JVT-H017提案相比，改进算法可以更精确地分配目标比特和控制码率，并能获得较高的PSNR。
Simulation results show that, comparing with JVT-H017, the proposed method can allocate the target bits and control the rate more accurately, and obtain a higher PSNR.
为实现卫星自维护遥操作系统中稳定可靠的视频反馈目标，提出一种基于分层码率控制的视频传输策略。
To realize the stable video feedback in the satellite self-servicing telerobotics system, a scheme based on scalable bit rate control is proposed.
然后，采用宏块层码率控制策略来分配目标比特；
Secondly, macroblock layer rate control strategy is used to distribute target bits.
本论文是研究的对象是以低码率视频编码技术(基于H . 263)为目标的视频编码标准，目的是为了能大大提高视频质量。
The purpose of this thesis is to study about the video-coding standard targeted for low-bit-rate video coding technique (H. 263) that improves video quality considerably.
同时，论文提出的码率控制算法还对宏块层的率失真优化过程做了改进，根据每个宏块的预测目标比特数来调整率失真优化的拉格朗日系数，使帧层码率控制效果更优。
At the same time, this paper also improves the process of RDO in the macroblock layer. Based on the prediction bits of the macroblock, the Lagrange coefficient has been modified adaptively.
该算法在目标误码率下，通过功率的优化配置，关闭无效的子带。
The algorithm closes the inefficacy sub-band by power optimization, and reduces the length of channel impulse response by chosen feedback filters.
该算法在目标误码率下，通过功率的优化配置，关闭无效的子带。
The algorithm closes the inefficacy sub-band by power optimization, and reduces the length of channel impulse response by chosen feedback filters.
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