The operating principle of laser scanning system, signal conversion and processing method during signal extracting process are described. The feasibility for objective evaluation is demonstrated.
阐述了激光扫描系统的工作原理、信号提取过程中的信号转换及数字信号处理方法,并对客观评价的可行性进行了验证。
Then the principle of OFDM technology is explained and the baseband signal process and the frequency conversion are discussed primarily with some detail problems explained.
然后阐述了OFDM技术原理,重点讨论了基带信号处理和变频两部分,对具体细节做了详细的说明。
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