The invention discloses a
digital television measurement
receiver which comprises a measurement
auxiliary circuit, a frequency converter, a channel demodulating circuit, a level switching circuit, a source decoding module, a
USB communication circuit, an
infrared and keyboard
control circuit, a panel display circuit, a
software control interface and an
embedded system; the measurement
auxiliary circuit is used for measuring parameters, such as minimum
signal reception level and carrier-to-
noise ratio threshold; the frequency converter reduces an RF
analog signal to an intermediate-frequency
signal and then outputs the intermediate-frequency
signal to the channel demodulating circuit; the channel demodulating circuit carries out a
demodulation processing to the signals and then outputs the processed signals to the source decoding module or the
USB communication circuit, meanwhile, the level switching circuit realizes level switching; the source decoding module is combined with the
infrared and keyboard
control circuit, the panel display circuit and the
software control interface so as to realize a function of human-computer
interaction control; the channel demodulating circuit is electrically connected with the
USB communication circuit, thereby realizing functions, such as the
software control in an
embedded system,
information acquisition and
processing in channels, and the like, and realizing
remote control and remote
information processing by
the Internet.