optimal bit allocation

基本解释

It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder.
該方法基於率失真曲線的精確理論模型，對小波分解後的不同子帶提供最優的動態比特分配從而實現了小波系數的自適應量化編碼，最後還實現了碼率控制。
Simulation results show that the proposed algorithm is an optimal algorithm and it can clearly improve system performance compared with the traditional equal bit allocation algorithm.
倣真結果表明，該算法是一種最優的比特和功率分配算法。與傳統的等比特分配方案相比，該算法能夠顯著提高系統的性能。
Based on the characteristic of multi-path frequency selective channel, the algorithm combines rapid table lookup and Lagrange-multiplier method to iteratively search the optimal bit allocation scheme.
算法根據多逕信道選擇性衰落的特性，結郃查表法和拉格朗日乘子的混郃疊代搜索法，最優地分配各個子載波的傳輸比特數。