Digital broadcasting system and method of processing data
First Claim
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1. A receiving system, comprising:
- a tuner for receiving a broadcast signal including mobile service data and a plurality of known data sequences;
a demodulator for demodulating the broadcast signal;
an equalizer for estimating channel impulse responses (CIRs), by adopting a least mean square (LMS) algorithm to update coefficients by shifting a pre-determined filtering window in symbol units, and compensating channel distortion in the demodulated broadcast signal based upon the estimated CIRs;
an inner decoder for inner decoding the channel-equalized broadcast signal; and
an outer decoder for outer decoding the inner-decoded broadcast signal.
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Abstract
A digital receiving system, and a method of processing data are disclosed. The digital receiving system includes a receiving unit, a known sequence detector, and a channel equalizer. The receiving unit receives a broadcast signal including mobile service data and main service data. The known sequence detector detects known data linearly inserted in a data group. The channel equalizer performs channel-equalizing on the received mobile service data using the detected known data.
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Citations
14 Claims
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1. A receiving system, comprising:
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a tuner for receiving a broadcast signal including mobile service data and a plurality of known data sequences; a demodulator for demodulating the broadcast signal; an equalizer for estimating channel impulse responses (CIRs), by adopting a least mean square (LMS) algorithm to update coefficients by shifting a pre-determined filtering window in symbol units, and compensating channel distortion in the demodulated broadcast signal based upon the estimated CIRs; an inner decoder for inner decoding the channel-equalized broadcast signal; and an outer decoder for outer decoding the inner-decoded broadcast signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of processing broadcast data in a receiving system, the method comprising:
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receiving a broadcast signal including mobile service data and a plurality of known data sequences; demodulating the broadcast signal; estimating channel impulse responses (CIRs), by adopting a least mean square (LMS) algorithm to update coefficients by shifting a pre-determined filtering window in symbol units, and compensating channel distortion in the demodulated broadcast signal based upon the estimated CIRs; inner decoding the channel-equalized broadcast signal; and outer decoding the inner-decoded broadcast signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification