Applications of Spread Spectrum Radio to Indoor Data Communications

Abstract

This paper describes an operating, radio communication system intended for indoor use. The problems of multipath are discussed and the use of spread spectrum to overcome these problems is described. Two receiver implementations were constructed and a surface acoustic wave correlator version is described in detail. The system operates at a data rate of 100 Kbps over a range of 1000 meters with a power of 50 milliwatts.