文档介绍：1962 IRE TRANSACTIONS ON AEROSPACE AND NAVIGATIONAL ELECTRONICS 11
Airborne Doppler Radar Navigation
of Jet Transport Aircraft*
RICHARD N. WHITEt, SENIOR MEMBER, IRE
Summary-Trans World Airlines will pioneer use of Doppler In the case shown, the selected course is 90 degrees
radar as a primary means of transport aircraft navigation over the east of ic north. A north wind (vector quantity
North Atlantic. This paper summarizes flight test results using dual
Doppler radar sensors and dual Doppler puters on C-B) causes a 10-degree drift to the right. The aircraft
Boeing 707 long range aircraft. Test flights have been flown over must fly a heading of 80 degrees to fly along the pre-
TWA's North Atlantic routes for almost two years to "prove-in" selected 90-degree course (along line A-B). Thus, the
the Doppler system. heading correction angle must be equal and opposite to
the drift angle to keep the aircraft on the selected
AN AIRCRAFT can be navigated between any two
course. This figure also shows that the actual course
points on the earth's surface on the basis of three
"course made good") is the algebraic
input parameters: heading, drift angle, and (sometimes called
sum of the heading (always a positive number) plus the
ground speed. Basically, the navigational accuracy be-
drift angle (right drift being positive and left drift being
is limited onl