Wright, Julian R.
Most widely held works by Julian R Wright
Some factors affecting the correction of ionospheric refraction errors in transit doppler data ( Book )
1 edition published in 1961 in English and held by 1 library worldwide
It is present practice to eliminate 'first order' refraction effects from TRANSIT doppler data by using the doppler shifts at two frequencies. If an effort is made to correct higher order refraction errors by using doppler shifts at three or four frequencies, the effect of errors other than those caused by refraction is increased. It is shown that these other errors must be decreased before higher order refraction correction is useful. It is further pointed out that the erratic errors which constitute a bar to further refraction correction are useful as a measure of other types of system error. Reduction of these erratic errors constitutes a simple criterion of improved system performance. (Author).
The design and testing of a uhf phase shift resolver ( Book )
1 edition published in 1962 in English and held by 1 library worldwide
The design and testing of a UHF resolver with an accuracy (mechanical rotation versus electrical phase shift) of plus or minus two degrees and an insertion loss of 26.8 plus or minus one-half decibel is described. (Author).