Some Fundamentals of A-J Design for Radar Receivers
Abstract
This report discusses the philosophy of a-j receiver design at this laboratory. All discussions are of a very general qualitative nature with almost no mathematics being used. They are purposely made very general and qualitative since the purpose of this paper is distinctly not to form a basis for actual design, but rather to familiarize the engineer with the requirements which must be met in an a-j receiver and the general circuits used to meet them. Actual circuit details and component parts values are left to other authors. The paper starts with a discussion of the requirements which must be met by the receiver. This if followed by a discussion of some of the protective circuits including a discussion of the reasons for choosing the particular circuits used at this laboratory. The next parts of the paper then discuss the fundamentals of the operation of these circuits in general terms covering such subjects as (a) Dejamming Action of Back-Bias Circuits (b) Pulse Transmission of Back-Bias Circuits (c) The Detector (d) Video Filters (e) The Echo By-Pass. Each of these subjects and the others covered, are discussed from the standpoint of importance and how they are affected by various system characteristics such as, (a) Bandwidth (b) Dynamic Range (c) Filter Q and other such factors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 04, 1946
- Accession Number
- AD1191298
Entities
People
- T. H. Chambers
Organizations
- United States Naval Research Laboratory