Engineering topics
Publications and source records attributed to Laderman, A..
Correlator can handle long-length pseudonoise sequences by adding shift registers, counters, and adders in "tree" configuration of basic 16-bit scheme. Correlation coefficient of unity or zero is generated when all bits of sequence are received and positioned correctly in input shift register.
The Synthetic Aperture Radar (SAR) onboard the Seasat-A satellite will conduct a number of experiments involving deep ocean waves, coastal wave patterns, polar ice and land forms. The SAR will have a 25 m by 25 m resolution over a swath of 100 km width centered about 300 km to the right of the spacecraft track. The SAR's high data rate limits operations to times when Seasat-A is in view of a few ground stations with special SAR receiving equipment. However, the SAR will collect much useful data about deep ocean and coastal waves in the Atlantic and Pacific Oceans; about ice in the Northwest Atlantic, in the Great Lakes and off the coast of Alaska; and about land over much of the United States and Canada.