Innovative Technologies at Millimeter Wave Frequency Band
ALACA Ka Band Radar Cross Section Measurement System
MILLIMETER WAVE TECHNOLOGY FOR RCS MEASUREMENTS
Naval vessels needs to reduce their visibility and hence maximize their survivability by ensuring that their RCS signature is as small as possible. Decreasing of RCS signature is necessary to ensure that a ship is able to successfully perform its mission while maintaining its level of survivability and ensuring its crew remains safe.
ALACA is used in measurement of the Radar Cross Section (RCS) which is an important parameter in protection of the Naval Forces Command combat platforms from fire control radars and guided missile seeker radars that can be found in hostile platforms, to test the measures applied to improve the millimeter wave Radar Cross Sectional Areas of existing or newly designed platforms and to determine the operational scenario of electronic warfare counter measures like chaff and decoys. ALACA RCS Measurement System has also a capability to create ISAR images of the naval platforms. With these functions, ALACA is a critical system for the survival of our naval platforms.
ALACA has separate transmit and receive antennas. System has co-polarization (Horizontal transmit/ Horizontal receive - HH, Vertical transmit / Vertical receive - VV”), and cross-polarization (Horizontal transmit / Vertical receive - HV and Vertical transmit / Horizontal receive – VH) capabilities.
ALACA also has an Inverse Synthetic Aperture Radar (ISAR) mode capability. Angular motion of the target are measured and processed to generate images of non-cooperative sea targets for the purpose of classification and identification.
ALACA Radar Cross Section Measurement System is a solid-state based, pulse-doppler radar. Operating Frequency can be adjusted between 34.650 – 35.150 MHz. Radar Instantaneous Bandwidth is 50MHz and range resolution can be adjusted as 3m, 6m and 9m.
ALACA displays the images of the target platform to the operator during the measurement with the High Resolution Day / Night Camera and automatically records them at the same time.
REAL TIME OPERATION
ALACA has User Interface Software running on a rugged laptop. User Interface Software provides the operator with a user-friendly interface for measurement, analysis and all control and use processes of the system.
ALACA is largely autonomous in terms of its operation as once programmed and started, it operates transmits/receives the RF signal, process and generate the RCS data of the measured platform. ALACA has a multi-purposed GUI. It provides operator interface, diagnostic interface and Own Ship Data interface to the user. Radar PPI screen, camera view, RCS measurements and platform information are displayed to the operator in real time and are also recorded for analysis and evaluation purposes. On the analysis screen, a large number of statistical data and graphics belonging to the RCS profile of the platform are displayed to the operator and reported automatically.
Millimeter Wave Frequency
High Range Resolution