Field strength measurement method and apparatus for modulation signal

Abstract

The invention provides a field strength measurement method and apparatus for a modulation signal, belongs to the field of radio monitoring, and particularly relates to the field strength measurement in a radio monitoring system. The field strength measurement is an important subject of parameter measurement in the field of radio monitoring, and an important measure for realizing authorizing whether a normal transmitted power of a service exceeds a provision, electromagnetic compatibility analysis, electromagnetic environmental testing, transmission phenomenon testing, collection of atmosphere radio noise data, and coordinating of frequencies in or out of a border. The purpose of the invention is to realize the field strength measurement to the modulation signals in optional bandwidths aiming at the problems that the current field strength measurement device only can carry out field strength measurement on a certain frequency point under a certain RBW (Resolution Bandwidth) condition and cannot give out a complete field strength measurement result in a signal bandwidth to the modulation signal with a certain bandwidth, and the well automation performance is realized. The method and the apparatus, provided by the invention, have the advantages of strong signal adaptability and high degree of automation.

Description

technical field [0001] The invention belongs to the field of radio monitoring, in particular to field strength measurement in a radio monitoring system, in particular to a method and device for measuring field strength of a modulated signal. Background technique [0002] Field strength measurement is an important subject of parameter measurement in the field of radio monitoring, and it is important to realize whether the normal transmission power of the approved business exceeds the regulations, electromagnetic compatibility analysis, electromagnetic environment test, propagation phenomenon test, collection of atmospheric radio noise data, and domestic and foreign frequency coordination. means. Field strength is the abbreviation of electric field strength, which is the magnitude of the electric signal induced by the antenna at a certain point in space to characterize the electric field strength at that point. [0003] Field strength meters and other equipment capable of mea...

AI Technical Summary

Problems solved by technology

In other words, existing field strength measurement equipment can only measure field strength for a single frequency point, but cannot measure field strength for modulated signals

Of course, the field strength value of the modulated signal can also be measured by adjusting the RBW of the device to be exactly equal to the bandwidth of the modulated signal by using the existing field strength measurement equipment, but this will require the field strength measurement equipment to have the function of arbitrarily setting the RBW , which is unrealistic in practice, and adjusting RBW according to the signal bandwidth makes the measurement process more cumbersome, which makes the automation of the equipment not high

[0004] To sum up, the existing field strength measurement equipment can only measure the field strength at a certain frequency point under certain RBW conditions, but cannot provide complete field strength measurement results within the signal band for modulated signals with a certain bandwidth

Images