Microwave Intercept Systems
Abstract
Limitations of devices developed in World War II for monitoring enemy microwave transmissions led to a series of investigations at the Naval Research Laboratory on improved techniques for receiver control, signal display, and recording. These techniques are now being applied in the development of the AN/WLR-1 microwave intercept system. On continuous or repetitive microwave signals it is expected that the AN/WLR-1 will provide greater operational utility than has been available with previous equipment. Although the AN/WLR-1 employs a high-resolution superheterodyne receiver, it compares favorably in probability of intercept with receivers based on wide-open techniques. Use of unitized construction provides this system with a wide range of flexibility for future special installations. The speed of system operation is such that the rate of signal acquisition, of analysis, and of data storage will be limited by operator decision time instead of by equipment characteristics. Experience with the NRL system indicates the desirability and feasibility of supplemental improvements in the acquisition display, the manual signal store, the DF display, the recording camera, and the overall receiver noise figure. In addition, suitable attachments to provide monitoring facilities for shipboard jammers should be part of a future program. The AN/WLR-1 is the first prototype equipment that has techniques adaptable to the problems of coordinated operation of two or more intercept systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 08, 1957
- Accession Number
- AD1223285
Entities
People
- H. K. Weidemann
Organizations
- United States Naval Research Laboratory