Presentation	1998/2/20 Note on the Inherent Bias of a Radar for Measuring the Navigation Accuracy of Aircraft Sakae NAGAOKA,
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Abstract(in English)	This paper deals with the inherent bias of a simple height finding radar, which is called the Navigation Accuracy Mesurement System(NAMS).The radar uses a marine radar as its sensor and estimates the height of cruising aircraft using a non-linear least squares method.Because of using the linearized observation equation for its height estimation, an inherent bias error due to the non-linear equation occurs in the estimated height.The characteristics of the inherent bias are quantitatively analyzed.The results indicate that the inherent biases of NAMS are within a few centimeters, i.e., negligibly small under realistic observation conditions.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	NAMS / Inherent bias / Non-linear lea stsquares method / Vertical separation
Paper #	SANE97-144,SAT97-142(1998-02)
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Conference Information
Committee	SAT
Conference Date	1998/2/20(1days)
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Paper Information
Registration To	Satellite Telecommunications (SAT)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Note on the Inherent Bias of a Radar for Measuring the Navigation Accuracy of Aircraft
Sub Title (in English)
Keyword(1)	NAMS
Keyword(2)	Inherent bias
Keyword(3)	Non-linear lea stsquares method
Keyword(4)	Vertical separation
1st Author's Name	Sakae NAGAOKA
1st Author's Affiliation	Electronic Navigation Research Institute, Ministry of Transport()
Date	1998/2/20
Paper #	SANE97-144,SAT97-142(1998-02)
Volume (vol)	vol.97
Number (no)	556
Page	pp.pp.-
#Pages	6
Date of Issue