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叙述了MIS系统数据信号在现有模拟话路信道传输的限制因素,提出了数据信号在模拟话路信道传输的具体要求,举例说明数据差错率(误码率)的测试及对测试结果的分析判断。
Describes the limiting factors of MIS system data signal transmission in the existing analogue speech channel, proposes the specific requirements of data signal transmission in analogue speech channel, and illustrates the test of data error rate (BER) and the analysis of test results judgment.