The PLL Amplifier Design Based on Analog Multiplier

Abstract

The weak signal is referred to the amplitude of the useful signal with respect to the amplitude of the noise signal is very weak, i.e. the useful signal is drowned in noise. The weak signal detection use the issuance of electronic technology and signal processing to extract the useful signal from the noise. The key lies in the weak signal detection process noise suppression, recovery and extract useful signal. This article from the signal processing methods to improve the signal-to-noise ratio discussed weak signal detection theory, this paper focuses on the detection method and application of the principle of weak signal detection method to detect weak signal amplitude and phase-locked loop amplifier.KeywordsNoise SignalInput NoiseNoise Power Spectral DensityAnalog MultiplierNoise BandwidthThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.