MC92314 Datasheet, PDF (44/100 Pages) Motorola, Inc – DVB-T Single Chip Demodulator Application Note

Device Description
Freescale Semiconductor, Inc.
3.2.3.5.3 Reed-Solomon Performance Analysis
The performance was evaluated by applying BPSK Modulation to the input bits and transmitting
over an Additive White Gaussian Noise (AWGN) channel at different Signal-to-Noise Ratios
(SNR). The results are shown in Figure 3-18. For high input byte error rates the Reed-Solomon
is not able to correct errors since there are too many errors per frame. After crossing the point
where the average input byte error rate becomes lower than 8/204, the error correction capability
of the (204,188,8) code is used to correct most of the errors, leading to a substantial decrease
in byte error rate.
Preliminary ^Information
Figure 3-18. Input Byte Error Rate versus Output Byte Error Rate
MOTOROLA
3-26
Single Chip DVB-T Demodulator - Rev. 1.3 (11/30/98)
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