DIGITAL WIDEBAND RECORDING SYSTEMS

Abstract

Historically, those interested in recording one or more channels with analog content of greater than or equal to 2 MHz, must use an analog recorder. In the last few years, advancements in analog-to-digital converter technology, performance enhancement in Digital Signal Processors (DSPs), and digital recording devices have made cost-effective, wideband recording applications possible through the use of all-digital techniques. This paper has three objectives: 1. It attempts to explain the benefits of a wideband digital recorder over the traditional analog variety. 2. It discusses the key elements of a wideband digital recorder. 3. It presents a realizable 10-channel, 30 Mbit PCM digital recorder solution. 4. It presents a realizable 14-channel, 2 MHz (bandwidth) digital recorder solution.