Monopulse Tracking with Adaptive Arrays
Abstract
This technical report assesses the effectiveness of monopulse tracking while cancelling jammers in the sidelobes using practical null steering techniques. In monopulse tracking systems using adaptive arrays, two adaptive receiving beams with nulls on the sidelobe jammers are formed: a sum beam sigma and a difference beam delta. In this report, antenna pattern decomposition of the sum and difference beams allows first-order estimates of the boresight shift error due to null steering when the jammer locations and the adaptive weights are known. Measurements on a small fully adaptive amplitude comparison monopulse array are presented and compared with computer simulations including both random construction errors and null steering errors. Computer simulation results are also presented for larger arrays. In most cases, random construction errors in the monopulse tracking array cause more monopulse boresight shift error than will be caused by optimal null steering of the sidelobes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1978
- Accession Number
- ADB025970
Entities
People
- Carl E. Giesler
- Charles L. Zahm
- Eduardo H. Villaseca
- George G. Rassweiler
- Samuel L. Earp
Organizations
- Harris Corporation