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- 反差函数(用作测试菲林等的反差及解像力,亦称modulation transfer function)sine wave transmission
- 调制传递函数(Modulation Transfer Function,简称MTF),是光学成像系统成像质量的重要评价指标。MTF (Modulation Transfer Function) is a key indicator of digital imaging system.
- 主要研究内容包括:1)可以实现LFM(Linear Frequency Modulation)功能的32位流水线相位累加器的设计;The research including:1) Design of pipelining 32-bit frequency-phase accumulator with LFM(Linear Frequency Modulation);
- 主要讨论了三种语音编码方案 ,即线性脉冲编码调制 ( PCM,Pulse Code Modulation)、A律 PCM和连续可变斜率增量调制 ( CVSD,Continuous Variable Slope Delta Modulation)。Three kinds of speech encoding schemes, namely, Pulse Code Modulation, A law PCM and Continuous Variable Slope Delta Modulation, are discussed mainly.
- 提出一种基于高压缩多载波调制(HC-MCM,high compaction multi-carrier modulation)技术和排列组合正交频分复用(PC-OFDM,parallel combinatory OFDM)技术的新型调制系统,即排列组合高压缩多载波调制(PC/HC-MCM)系统。A novel system named parallel combinatory/high compaction multi-carrier modulation(PC/HC-MCM) system was proposed based on techniques of high compaction multi-carrier modulation(HC-MCM) and parallel combinatory OFDM(PC-OFDM).