Design of a network receiver for 20MHz to 3GHz ultra-short wave spectrum monitoring

A network receiver for ultra-short wave spectrum monitoring is designed for testing and data collection of the electromagnetic environment for the purpose of mastering all kinds of wireless business and communication system, especially the broadband wireless access, the Internet of Things and other new business with frequency of background noise and frequency of use. The receiver employs a program of super-heterodyne double-converted; the frequency range monitored by the receiver is from 20MHz to 3GHz. The receiver using digital signal processing technology, can achieve signal demodulation of a variety of working methods, digital IF filter of a variety of bandwidth. It uses the computer network control, and uses computer monitor to display the receiver working parameters and the spectrum of the received signal, the antenna-side input level size etc. It also provides a good interactive interface. The practical use shows that the receiver has high receiver sensitivity and anti-jamming performance. It can adapt to the monitoring needs with wide dynamic range. It can provide the technical basis of frequency domination, frequency planning and frequency coordination for radio management departments.