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随着数字化技术应用于语声的传送、自动识别、合成及语音研究,人们已经作出了很大努力来解决由于二进制电路元件偶然性的误动所造成的脉冲干扰问题。为了检测和消除这种干扰近年来国外已经做了许多工作,作者曾经采取了一种新的办法来解决这一问题。本文介绍这一新方法并从理论及实践效果比较作者提出的新方法和文献中推荐的方法在消除脉冲干扰影响,计算效率和实施难易程度方面的优劣。多次比较不同方法在计算机上处理同一份实际存在脉冲干扰的数字化语声材料的结果表明:作者提出的方法在消除脉冲干扰方面是成功的,和现有方法相比毫不逊色。新方法在计算效率方面远高于见诸文献的方法,同时也易于用普通硬件来实现。文中附有按新方法编制的FORTRAN程序、相信会有助于从事数字化语声通信的同行顺利消除工作中遇到的这种起源于部份二进制电路误动作的脉冲干扰。
With the application of digital technology in speech transmission, automatic identification, synthesis and speech research, great efforts have been made to solve the problem of impulsive interference caused by the accidental misoperation of binary circuit components. In order to detect and eliminate such interference, much work has been done abroad in recent years. The author has taken a new approach to solve this problem. This paper introduces the new method and compares the advantages and disadvantages of the new method proposed in the author and the methods proposed in the literature to eliminate the influence of impulsive interference, computational efficiency and ease of implementation from the theoretical and practical effects. Comparing several different methods to computerize the same digitized phonetic material with actually impulsive interference shows that the method proposed by the author is successful in eliminating impulsive interference and is not inferior to the existing methods. The new method is much more computationally efficient than the documented method, and it is also easy to implement with common hardware. The article contains the FORTRAN program compiled according to the new method, I believe will help to engage in digital voice communications counterparts successfully eliminate the work encountered in this part of the binary circuit malfunction of the pulse interference.