Feasibility Study for an RF-Based Proximity Sensor using Embedded Antennas in High Velocity Projectiles | Consortium for Embedded Systems | SIU

Abstract: This project proposes to study the feasibility of an embedded RF-based proximity sensor in a high-velocity projectile. The sensor will incorporate an RF antenna. The study will investigate the design requirements of the antenna with regards to transmitting and receiving RF signals at significant levels and with sufficient SNR in order to enable the detection of proximity. Along with the antenna investigation, the project will also investigate appropriate signal processing algorithms that will enable the quick and reliable detection of proximity based on the signals received by the antenna. One part of the methods will include numerical simulation of both the antenna and the signal processing under variable environment. Another part of the methods will include studying the possibility of using the projectile body as antenna and perform experimental tests in the anechoic chamber in order to verify the antenna patterns versus frequency relation and its power requirements. The project deliverables include (a) the data and outcomes from the investigative studies; (b) a preliminary antenna design; (c) and a suitable signal processing algorithm for fast proximity detection. A fully developed embedded RF-based proximity sensor will improve significantly the accuracy and efficacy of the projectile. The outcomes of the proposed work will provide the basis for a later effort to refine, optimize and subsequently develop and test a prototype RF-based proximity sensor. In this regard, the proposed work will be of benefit to the related industry.

Problem: The problem includes the following aspects of the sensor: (a) the sensor RF antenna. The project will investigate what patterns are suitable for the particular application given the limited size and operating conditions of the sensor. The project will also investigate using the projectile body (with some minor modifications) as an antenna; (b) the signal processing algorithm which will provide the proximity detection threshold.

Rationale / Approach: The proposed project is necessary in order to lay the ground work for developing a prototype.

Novelty: There are two potential scientific advancements under this project: (a) the use of the projectile body as antenna; (b) the characterization of the environment under the RF signals and the development of the detection algorithm.

Potential Member Company Benefits: An accurate and reliable RF-based proximity sensor can significantly improve the accuracy of the projectile and its effectiveness.

Deliverables for the proposed year: The following will be delivered by the end of the project: (a) the data and outcomes; (b) a preliminary antenna design along with the power budget requirements; (c) and a suitable signal processing algorithm for fast proximity detection.