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随着电子电器产品的不断增长,调频接收受到的干扰也日益严重.由于干扰的存在,轻则使实际收听的信噪比恶化,重则产生差拍、哨叫,使接收机无法接收,尤其在电台或干扰源附近,同一电台或干扰信号往往布满刻度,使接收机无法接收其它所需信号.为此,除合理分布电台,限制电子、电器产品的干扰辐射外,提高接收机的抗干扰性能也作为产品设计的重要研究课题.性能的分析测试是提高性能的基础和前提.本文着重对抗干扰测试方法中的一些特殊问题作一扼要的分析说明.
With the continuous growth of electronic products, FM receiving interference is also increasingly serious due to the presence of interference, ranging from the actual listening to the deterioration of the signal to noise ratio, re-produced bad beat, whistle, the receiver can not receive, especially In the vicinity of a radio station or interference source, the same radio station or interference signal tends to be full of scale, so that the receiver can not receive other required signals, for this reason, in addition to distributing radio stations rationally and limiting interference radiation from electronic products and electronic products, Interference performance is also an important research topic in product design.Analysis and testing of performance is the basis and premise for improving performance.This article focuses on some special problems in anti-jamming testing method to make a brief analysis and explanation.