Differential Pulse Code Modulation (DPCM)  

Oleh:

Chandra, Martin ; Widiarto, Sandra Octaviani B.

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI - atma jaya
Dalam koleksi: Metris: Jurnal Mesin, Elektro, Industri dan Sains vol. 3 no. 3 (Sep. 2002), page 25-36.
Topik: ALGORITHM; Compression; Fir Filter; Levinson Durton Algorithm
Fulltext: hal 25-36.pdf (323.2KB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM42 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Rapid information exchange demands a method to reduce information size without changing the content of the information itself. PCM system is a common standard used to convert an analog signal to a digital signal. Differential Pulse Code Modulation(DPCM) is a modulation which sends the difference between the original signal and its predicted value. The difference is quantized then the results is coded for transmitting. The difference is also the input for 2nd order predictor which produces a new predicted value with certain prediction coefficient. The new predicted value is compared to the next input signal which makes the number of transmitted bit less. As result, the efficiency of transmission bandwidth usage increased.

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