Network corrected real-time is a technological approach to high precision GPS/ GNSS positioning that has been theorized about, studied, experimented with, and implemented in various academic, scientific, and commercial forms for nearly a decade. Many of the various approaches share the fruits of past research, algorithms, and technological tools; some which are in common.
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Fred Henstridge has more than 50 years of professional experience in geomatics engineering, surveying, mapping, transportation engineering, municipal engineering, and GIS management. He spent ten years with the California Department of Transportation where he was involved with planning, engineering, and surveying efforts with the Caltrans interstate highway program. After his tenure with Caltrans, he started his own geomatics and civil engineering firm, which was acquired by Psomas and Associates in 1982. Since that time, he has been a Principal of Psomas, Corporate Director of Geospatial Services and GIS. He is currently Director of Psomas’ Federal Programs Development.
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