Pulse generator having selectable pulse width and pulse repetition interval

DETAILED DESCRIPTION The present invention overcomes the disadvantage and limitations of the prior art by providing an improved radar antenna scan pattern simulator.
The present invention utilizes an antenna scan generator for providing a low frequency a-c signal and a pulse repetition interval generator with stagger circuit for providing a pulse repetition interval signal.
An RF carrier signal modulated by the pulse repetition interval signal is amplitude modulated by the low frequency a-c signal for generating the simulated antenna scan pattern.
It is therefore an object of the present invention to provide an improved radar antenna scan pattern simulator.
Another object of the present invention is to provide an antenna scan pattern simulator that is reliable in operation and inexpensive to manufacture.
Still another object of the present invention is to provide an antenna scan pattern simulator that is programmable.
Other objects and further scope of applicability of the present invention will become apparent in the detailed description given hereinafter.
The detailed description indicates the preferred embodiments of the invention and is given by way of illustration only since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description when considered in connection with the accompanying drawings in which like reference numerals designated like parts throughout the figures thereof and wherein.
It should be understood that the foregoing abstract of the disclosure is for the purpose of providing a nonlegal brief statement to serve as a search scanning tool for scientists, engineers and researchers and is not intended to limit the scope of the invention as disclosed herein nor is it intended that it should be used in interpretting or any way limiting the scope or fair meaning of the appended claims.