Accession Number:

AD0259766

Title:

DOPPLER VELOCITY FOR SPACE NAVIGATION

Descriptive Note:

Corporate Author:

GENERAL PRECISION INC PLEASANTVILLE N Y GENERAL PRECISION LAB DIV

Personal Author(s):

Report Date:

1961-06-01

Pagination or Media Count:

1.0

Abstract:

A study was made of doppler velocity measuring techniques for space navigation. The purpose was to investigate experimentally the feasibility of space velocity determination by measuring the doppler shifts in the 21-cm hydrogen absorption line. The work accomplished includes the design and construction of both a recorder-analyzer and a frequency tracker. The recorder-analyzer processes the hydrogen line signal and provides a down-converted version of this signal for recording on magnetic tape the analyzer portion performs a spectrum analysis on either the direct or the recorded signal. The frequency tracker measures and follows the center frequency of the absorption line. The results described demonstrate in a qualitative manner the feasibility of utilizing the doppler shift in the 21-cm radiation for space velocity measurements. Some of the techniques developed are applicable to the entire field of radio astronomy. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE