摘要
介绍一种采用单片机组成的胎儿心率监护仪的基本结构和工作原理。为了满足对胎儿心率信号检测的实时性 ,缩短信号处理的运算时间。提出了一种自相关函数的计算方法。较为详细的介绍了对胎儿心率的实时采样与信号处理的实现方法。该技术并已获临床应用。临床试用表明 ,能较有效克服检测信号中的随机噪声干扰 ,大大提高仪器的检测精度 ,满足对临床的实际使用要求。
This paper illustrates the design methods of signal auto correlation processing for the embryo heat rate survey instrument. In order to satisfy the real\|time of the embryo heat rate signal and to shorten the time of operation for the single processing, a method of signal auto correlation processing is given. Here, it introduces in detail the method of real time sampling and signal processing for the embryo heart rate. These techniques were and are used in medical applications. It is testified that this technique can enhance the precision when the device is used for surveying without significantly interfering with random noise, which can satisfy the needs of medical applications.
