送信信号が複数の遅延時間の異なる伝搬路を通り無線受信機に到達する様子を時間と受信電力の点から示した遅延プロファイルを表す図⇒(Transmission) delay profile represented by the transmission delay vs. received power (signal strength) characteristics curves after a transmitted signal passed throgh the multiple transmission channels having respective delays and reached at a receiver input.