摘要:

AbstractThis paper was presented at the Biennial Conference of the Land Survey Division of the Royal Institution of Chartered Surveyors, Nottingham, 1984. It is published in two parts. Part 2 will appear in the next issue of this journal.

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.234

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

摘要:

AbstractModern microwave distance meters are so designed that at long ranges the influence of multipath (groundswing) is minimal. At shorter ranges this effect is not insignificant. The authors evaluate this effect for a variety of reflective surfaces by moving both instruments vertically on specially constructed stands.

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.256

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

摘要:

AbstractA complex number method is developed for the solution of the type of problem where a number pair (e.g. a pair of coordinates) is to be determined such that a mathematically related pair of quantities take specific values.

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.267

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

摘要:

AbstractAn interesting account of the early use of echo-sounding is presented in three successive parts by Commander P. S. E. Maxwell. The following is an extract from the third paper,‘Echo Sounding’, in vol III, no. 19, of January 1936.

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.274

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

摘要:

AbstractIn October 1983 the metre was redefined as the distance travelled by light during a time interval of 1/299792458 of a second.The author explains why a change of definition was needed, and comments on the methods recommended for realising the metre using the new definition.

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.276

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.280

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1986.28.219.i

出版商:Taylor&Francis    

年代:1986

数据来源: Taylor