🌐EnglishEnglishDeutschFrançaisSvenskaРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ3072260· pop 18· linked from 248 articlesfiltersignal processing device or process that removes unwanted components or features from a signal, or enhances wanted ones, or bothAvailable in 18 languagesFrançais中文日本語العربيةहिन्दीBanglaBurmeseCatalanCzechConnectionsoptical filterEntityband-stop filterEntityCategoriesFilter theorySignal processingTelecommunication theory