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Efficient hardware implementation for signal reconstruction over multiple analog-to-digital, digital-to-analog conversions in a telecommunication system
Efficient hardware implementation for signal reconstruction over multiple analog-to-digital, digital-to-analog conversions in a telecommunication system
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机译:电信系统中通过多个模数,数模转换进行信号重构的高效硬件实现
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摘要
Method and apparatus for providing an improved quality voice band channel equalization in telecommunication systems employing v.90 transmission standard in which PCM modem signals passing through a digital-to-analog and analog-to-digital conversion processes between a central office switch and a multiple subscriber access system may be reconstructed with improved quality at the A/D converter side by variably adjusting the gain between the digital-to-analog conversion process at the central office switch and the analog-to-digital conversion process at the multiple subscriber access system, and low pass filtering the signal using a second order low pass notch filter to provide a boost of 6 dB at a frequency of 4 KHz.
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