Performance Analysis of Surface Acoustic Wave Matched Filters

Abstract

SAW matched filter is commonly used in spread spectrum communication receivers in order to maximize the SNR prior to detection. At times the receiver would be a mobile one while the signal is processed at the IF level. In that case frequency deviations due to Doppler shift or temperature dependence of the acoustic medium used for SAW device would, severely effect it's performance. The impact of these errors on the receiver performance is analyzed on a generalised basis.

Indexing terms:

• SAW
• Matched filter
• Correlator
• Spread spectrum