DVB-S receiver and method for displaying quality and intensity index signals
A satellite receiver, digital imaging technology, used in image communication, TV, color TV components and other directions, can solve the problem of unable to accurately lock the signal, unable to provide signal quality information and other problems
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[0027] figure 2 It is a structural diagram of an embodiment of a digital image broadcasting satellite receiver capable of displaying the quality and strength of a received radio frequency signal according to the present invention. The digital video playback satellite receiver includes a tuner 21, an analog-to-digital converter 22a, 22b, a DC current canceller 23, a demodulator 24, an automatic gain control unit 25, a Fourier transform unit 26, and a computing unit 27 and a display unit 28. The tuner 21 is used to receive a radio frequency signal, down-convert the radio frequency signal, and transmit the converted radio frequency signal to the analog-to-digital converters 22a and 22b. The analog-to-digital converters 22 a and 22 b sample the RF signal from the tuner and send the sampled signal to the DC current canceller 23 . A direct current canceller (direct current canceller, DCC) 23 receives signals from the analog-to-digital converters 22a and 22b and eliminates the DC ...
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