bandwidth reduction

Trellis Coded Modulation ( TCM) has been widely used because it can obtain 2. 55~ 7. 37 dB coding gain without bandwidth expansion or reduction of the effective information rates.

由于格状编码调制（TCM）可以在相同的频带利用率下使信号得到2.55～7.37dB的编码增益，所以得到了广泛的应用。

Automatic mesh generation with optimization and bandwidth reduction by program will observably improve the efficiency and make the analysis result more reliable.

编制程序，实现了有限元网格的自动生成以及网格和带宽的优化，提高了分析的效率和可靠性。

The experiment shows that the bandwidth utilization and the reduction of user perceived VOD startup delays in the case of prefix cache hit.

实验结果表明，在能够命中缓存前缀的情况下，带宽利用率和客户感知的启动延迟将极大地减少。

Trellis-Coded Modulation ( TCM) is an advanced combined coding and modulation technique evolved in recent years. In TCM, significant coding gains can be obtained without bandwidth expansion or reduction of transmission rate.

网格编码调制（TCM）是近年来提出的一种先进的组合编码调制技术，在不降低信息传输率、不扩展占用频带的前提下，它能获得可观的编码增益。