Signal processing apparatus and method
摘要
說明書
The approximate replica generation unit further includes a quantization unit configured to coarsely quantize an amplitude of the complex composition result, and the subtraction unit can be configured to subtract, as the approximate replica signal, the complex composition result quantized by the quantization unit from the reception signal, with respect to the portion of the reception signal with respect to which the determination unit has determined that the envelope detection result exceeds the signal level.
The signal compression unit can further include a waveform shaping unit configured to shape a waveform of a difference between the reception signal and the approximate replica signal obtained by the subtraction unit.
The waveform shaping unit can include a limiting unit configured to limit an amplitude of the difference to a predetermined signal level or lower.
The waveform shaping unit can include a low-pass filter configured to limit high-frequency components of the difference.
The signal compression unit can include a low-pass filter configured to limit high-frequency components of the reception signal.
The signal level can include a thermal noise level.
A signal processing method according to one aspect of the present technology is a signal processing method including: compressing a reception signal so as to have a predetermined signal level or lower; and decoding transmission data transmitted from a transmitter side, the transmission data being included in the reception signal compressed so as to have the signal level or lower.
