Aerospace and Electronic Systems Magazine July 2018 - 36

Hybrid Guidance System Based on Infrared and Millimeter Waves

Figure 2.

Structure of infrared imaging seeker.

The infrared seeker without refrigeration is composed of four
main subsystems: the infrared imaging system, the information
processing system with stability control, and two power supplies
(including a filter). The structure of the infrared imaging seeker is
shown in Figure 2.
The infrared radiation from the target and its environment is
fed to the infrared detector, photoelectric conversion is obtained,
and an image video signal is formed. After the image signal is preprocessed, the image is sent to the information processing system
[16]. The dynamic stability system consists of a two-axis stabilization unit, a tracking platform, and a servo control circuit.
The information processing system provides infrared image
processing, management and control of seeker workflow, com-

munication interface, interface for instructions, reception of commands and state information, and echo and telemetry information
exchange [17]. The main functions of the infrared imaging system
are bearing, isolation of projectile disturbance, and two-axis stabilization. The optical axis adjustment is performed to achieve target
search and tracking according to the instructions of the information
processing system.

MILLIMETER WAVE GUIDANCE
In this article, W-band millimeter wave guidance technology is
used for a hybrid system design. The block diagram of the Wband phased array radar is presented in Figure 3. The working

Figure 3.

Block diagram of W-band phased array.

36

IEEE A&E SYSTEMS MAGAZINE

JULY 2018



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