Abstract
The purpose of this paper is to examine the behavior of the demodulator (receiver) of a linear delta modulation system, in the presence of transmission errors and indicate a method for improving the performance of the demodulation system whenever a transmission error has been detected. According to the error correction code adopted here, the transmitter sends beyond the binary representation of the analog input signal, another two bits indicative of the parity and order of “zeros” in a sixteen bit word. This additional information makes the receiver capable of detecting an error and provides the demodulator with the capability of correcting it. A detailed block diagram of the circuitry implementation of the code is then presented and experimental results are given.
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