NAVAL RESEARCH LAB WASHINGTON DC
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The practical application of Radar to the detection and tracking of surface and airborne targets was demonstrated prior to the 1939 outbreak of World War II. Subsequently the military usefulness of radar was significantly enhanced by an unprecedented concentration of scientific talent on wartime electronic development. The high operational effectiveness of radar at war brought forth countermeasures which nullified that effectiveness with varying degrees of success. At wars end, although radar still had great value against existing targets, there remained several deficiencies which threatened to reduce to the vanishing point the military usefulness of radar against the anticipated targets of another war. The findings of the Radar Panel of the Research and Development Board indicated in 1947 that the anticipated requirements could not be met by the nominal improvements that result from refinement of existing techniques. Rather the indicated need was for a new approach which would yield improvement by orders of magnitude. Significant improvement in radar angle error data has been accomplished through refinement in sequential lobing techniques, and application of monopulse techniques as proposed in an earlier report.1 Present high-speed lobing and monopulse techniques, together with modern servomechanism developments, promise sufficiently accurate and smooth angle tracking to meet most anticipated tactical requirements.
- Active and Passive Radar Detection and Equipment