Correlator
Supported by its experienced microwave team, process team, and management team, Hangtai Technology has been making consistent progress in enhancing the R&D and production capabilities of microwave components. The microwave components developed by this division are not only able to meet the needs of the company’s radar and radio altimeter projects but also can be put into use to serve the broader society.
Related products
MDY-71/74 Millimeter Wave Guidance Radar
The MDY-71/74 demonstration radar is a compact millimeter-wave coherent guidance radar that utilizes a phase difference system. It boasts key features including low cost, low power consumption, and high reliability, enabling it to detect and track targets—such as vehicles and vessels—within its beam coverage. Additionally, this radar can provide critical target information like distance and angle, while also supporting situational display functionality.
Small Radio Altimeter MY-28A、MY-24(XXX-28A、XXX-24)
The MY-28A and MY-24 (also designated as XXX-28A and XXX-24) are miniaturized C-band full-function radio altimeters that comply with aerospace standards. Serving as key components for the control of the longitudinal altitude channel, they are specifically designed for a certain type of UAV target. These altimeters possess excellent anti-interference performance and electromagnetic compatibility, enabling them to accurately measure altitude relative to the sea surface or the ground.
The MY-28A and MY-24 are developed following the three core design principles of serialization, standardization, and modularization. This design approach endows the products with strong design inheritance, ensuring they are mature and reliable in operation. To date, these two models of radio altimeters have been widely applied in multiple types of aircraft, with their total deployment quantity exceeding 800 units.
Mini Radio Altimeter MY-4001
The MY-4001 series altimeter represents the latest generation of radar altimeters. While complying with aerospace standards, it boasts an extremely compact size, with external dimensions measuring a mere 86mm × 52mm × 25mm. As a full-featured radio altimeter, the MY-4001 serves as a core component for the control of the longitudinal altitude channel. It finds wide application in flying missiles and unmanned aerial vehicles (UAVs) to measure altitude relative to the sea surface or ground.
Employing a linear frequency-modulated continuous wave (LFMCW) measurement system, the MY-4001 exhibits outstanding characteristics, including high precision, strong anti-interference capability, excellent battery compatibility, and stable, reliable operation. These attributes make it particularly well-suited for radar altitude measurement in ultra-light and ultra-small aircraft. For interface output, it adopts RS422 and CAN protocols, which effectively enhances the reliability of the product's data transmission.
MASS-21 Echo Simulator of Radio Altimeter
The MASS-21 Radio Altimeter Echo Simulator is capable of simulating both static and dynamic echo signals of altimeters under a variety of altitude conditions and reflection coefficient scenarios. It is compatible with radio altimeters of multiple systems, including frequency modulation (FM) systems, phase modulation (PM) systems, and pulse systems, and is also equipped with a built-in self-check function to ensure its own operational reliability during use.
MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter
The MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter is a specialized testing equipment designed to support the performance verification, calibration, and development of radio altimeters. It focuses on generating stable, continuous echo signals that accurately replicate real-world altitude-related signal environments—including varying echo amplitudes, frequency characteristics, and delay parameters corresponding to different flight altitudes and terrain conditions. By providing these realistic simulated excitation signals, the system enables radio altimeters to operate under controlled laboratory conditions, allowing engineers to test key functions such as height measurement accuracy, continuous tracking stability, and anti-interference capability. Its reliable continuous echo simulation function not only replaces the need for complex and costly field tests but also ensures consistent, repeatable test results, making it an essential tool for ensuring the reliability and performance of radio altimeters in practical aviation applications.
MY-5001B Radio Altimeter for Sea Condition Identification
The MY-5001B radio altimeter is an all-solid-state C-band device featuring a frequency-modulated continuous wave (FM-CW) system, a constant differential beat frequency, and a closed-loop tracking and measurement mechanism. It ensures a constant beat frequency through servo control of the slope of the sawtooth wave that modulates the microwave oscillator, thereby achieving automatic height tracking. This altimeter incorporates a suite of advanced technologies, including narrowband reception, weighted frequency discrimination, equivalent spectrum leading edge detection, gain PID control, instantaneous sensitivity compensation, temperature compensation, horizon frequency selection design, and power silence. These technologies collectively endow it with advantages such as accurate height measurement, stable tracking, adaptability to various terrains, a wide height measurement range, high precision, and strong anti-interference capabilities.
MDG-200 Radio Altimeter
The MDG-200 radio height-setting device operates in the C-band and adopts a monopulse working system. Its sensitive component is of the heterodyne type, and the circulator at the antenna terminal uses a transceiver common-mode configuration. Prior to missile launch, the height-setting device needs to be powered on; it then performs a self-check and completes height setting via the communication interface. After the missile is launched, the radio frequency (RF) module is activated, and a gate is set based on the preconfigured height. When the preset height is reached, the device outputs height-setting command information and telemetry data. The MDG-200 height-setting device features mature technology: the monopulse design enhances the altimeter’s height measurement performance, and the device also has the characteristic of not being affected by the carrier’s speed.
MASS-06 Continuous Echo Simulation Excitation System of Radio Altimeter
The MASS-06 Echo Signal Simulation Excitation System, hereinafter referred to as the "Simulation Excitation Source", is a dedicated equipment designed for the hardware-in-the-loop (HIL) simulation of radio altimeters. It serves as a key component in replicating real-world echo signal scenarios, providing targeted excitation signals that enable the radio altimeter to operate under simulated physical conditions—effectively bridging the gap between theoretical testing and actual operational environments to validate the altimeter’s performance, responsiveness, and reliability.
