为了补偿数字电视发射机的频谱畸变与相位失真，以得到最佳的VSB频谱特性，可以在调制器中加入预均衡网络对频谱进行预畸变。
To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
从信号复包络理论出发，分析并提出了数字电视VS B调制器中预均衡网络的实现算法及其FPGA硬件实现结构。
Based on the complex envelope theory, a pre equalizer algorithm and its hardware implementation architecture with FPGA was brought forwards and analyzed.
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