Differential GPS during hydrographic surveys in 1990
Shipman, Stephen
Differential GPS during hydrographic surveys in 1990 - 1991 - Land & Minerals Surveying 9(3) March 1991, 5-7(3) .
With the resumption of GPS satellite launches it was believed that at last, in 1990, the GPS would offer the RN Hydrographic Service a viable alternative to traditional land navigation systems. In late 1989 a tender exercise was conducted and a contract was let to Racal Marine Systems for the provision of three ship equipments and a Differential Service. This article describes the system and the results of an accuracy assessment carried out in March 1990.
GLOBAL POSITIONING SYSTEMS
HYDROGRAPHIC SURVEYS
PRODUCT REVIEW
Differential GPS during hydrographic surveys in 1990 - 1991 - Land & Minerals Surveying 9(3) March 1991, 5-7(3) .
With the resumption of GPS satellite launches it was believed that at last, in 1990, the GPS would offer the RN Hydrographic Service a viable alternative to traditional land navigation systems. In late 1989 a tender exercise was conducted and a contract was let to Racal Marine Systems for the provision of three ship equipments and a Differential Service. This article describes the system and the results of an accuracy assessment carried out in March 1990.
GLOBAL POSITIONING SYSTEMS
HYDROGRAPHIC SURVEYS
PRODUCT REVIEW