Weak signal detection

Author: Gao Jinzan
Publisher:
Publish Date: 2004-11-01
Features: Weak signals are signals submerged in noise, and the main purpose of weak signal detection is to improve the signal-to-noise ratio. This book studies the sources and statistical characteristics of noise, analyzes the causes and patterns of noise generation, applies electronic and signal processing methods to detect weak signals covered by noise, and introduces several effective weak signal detection methods and techniques. The book is divided into 7 chapters, with the main content including: Weak Signal Detection and Random Noise, Noise Sources and Characteristics of Amplifiers, Interference Noise and Suppression, Lock-in Amplification, Sampling Integration and Digital Averaging, Correlation Detection, and Adaptive Noise Cancellation. This book can serve as a textbook for graduate students and senior undergraduate students in fields such as automation, electronic engineering, physics, chemistry, biomedical engineering, and testing technology and instruments. It can also be used for self-study and reference by engineering technicians in related fields.