Click to enlarge
Home » Unmanned System Products » MASS-03 Radio Altimeter Continuous Echo Signal Simulator
MY-5001B Radio Altimeter for Sea Condition Identification
Back to products
MASS-06 Continuous Echo Simulation Excitation System of Radio Altimeter

MASS-03 Radio Altimeter Continuous Echo Signal Simulator

The MASS-03 Radio Altimeter Continuous Echo Signal Simulator is a specialized testing device designed to generate stable, continuous echo signals that replicate real-world altitude-related signal environments for radio altimeters. Tailored to support the development, calibration, and performance verification of radio altimeters, it accurately simulates various echo signal characteristics (such as amplitude, frequency, and delay) corresponding to different altitude scenarios, enabling users to test critical functions of radio altimeters—including height measurement accuracy, tracking stability, and anti-interference performance—under controlled laboratory conditions. By providing reliable, repeatable continuous echo signals, the simulator eliminates the need for costly and complex field tests, streamlining the testing process while ensuring radio altimeters meet design specifications for accuracy, stability, and robustness in practical operation.

Categories: , , , ,
Description

Product Description

  • Working frequency: 4.2~4.4ghz (the working frequency can be customized according to the user’s requirements);
  • Maximum allowable bandwidth: 200MHz;
  • Maximum allowable input power: 26dBm (can be customized according to user requirements);
  • Simulation height range: 1-4000m;
  • Simulation height resolution: 0.2m;
  • Absolute accuracy of simulated height: ± (0.2+0.005×h) m;
  • Correction accuracy after simulated altitude measurement: ± (0.2+0.002×h) m;
  • Height change speed: -500~500m/S;
  • Maximum attenuation of loop: not less than 130dB;
  • Minimum attenuation of loop: no more than 40dB;
  • Dynamic range of loop attenuation: not less than 80dB;
  • External volume: 3U standard cabinet of simulator body;
  • Control mode: Reflection memory control;
  • Working temperature: 0-50 ℃;
  • Storage temperature: 20-60 ℃.

Related products

Subminiature Radio Altimeter MY-70B

The MY-70B radio altimeter is a solid-state C-band radio altimeter system based on frequency-modulated continuous wave (FMCW) technology, characterized by constant beat frequency and closed-loop tracking measurement. It maintains a constant beat frequency by servo-controlling the slope of the sawtooth wave that modulates the microwave oscillator, thereby achieving automatic altitude tracking. Under the condition of constant beat frequency, the measured altitude is proportional to the modulation period; thus, altitude information can be obtained by measuring the modulation period, and the system then converts this information into an altitude voltage for output. The MY-70B altimeter possesses excellent anti-jamming performance, owing to its adoption of a narrow-band receiver (with gain adjustable according to altitude) as well as technologies including equivalent spectrum front-end detection, weighted frequency identification, and automatic servo tracking. In terms of component design, its high-frequency components implement microwave integration while its low-frequency components adopt a modular design—these measures collectively enhance the product’s reliability, anti-interference capability, and electromagnetic compatibility. Additionally, the MY-70B altimeter uses RS422 and CAN protocols for its interface output, which further improves the reliability of the product’s data transmission.

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.

6U Module Radio Altimeter MY-919

The MY-919 radio altimeter is a new-generation altitude-measuring radar system designed for a specific type of aircraft; as a miniaturized, full-function radio altimeter that complies with avionics standards, it serves as a key component for the control of an aircraft’s longitudinal altitude channel and can be widely applied in large aircraft and unmanned aerial vehicles (UAVs). A radio altimeter based on a frequency-modulated continuous wave (FM CW) closed-loop tracking servo control measurement system, the MY-919 adopts linear modulation coefficients adaptive to altitude changes and narrow-band reception of echo signals, granting the product strong resistance to active interference; it uses coherent mixing reception, which delivers superior performance in resisting co-frequency asynchronous interference and ensures the product has good electromagnetic compatibility; it employs echo signal spectrum front detection technology, enabling the product to maintain high precision in tracking and measurement; it follows serialization, standardization, and modularization design principles, resulting in good product inheritance; and it integrates digital frequency-domain processing and control, microwave integration technology, and hybrid integration technology, making the product stable in performance, mature, and reliable.

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.

MDG-100 Radio Height Setting Device

The MDG-100 radio altimeter operates in the C-band and adopts a pulse Doppler working system. Its sensitive device is of the heterodyne type, and the circulator at the antenna terminal uses a transceiver common-mode design. With mature technology, this altimeter is installed on missiles and serves as a control component for altitude fuzes. It features capabilities such as high burst altitude, strong adaptability to high falling speeds, and excellent performance in resisting ground clutter and sea clutter. Additionally, it employs pseudo-random pulse modulation technology: the pulse period varies randomly within a specified range, making it difficult for jammers to identify the initial modulation pulse of the fuze signal and further predict the delayed pulse. This design effectively enhances the altimeter’s resistance to active interference.

Small Radio Altimeter MY-1000

The MY-1000 altimeter is a radar altimeter specially designed for a specific type of target missile aircraft; as a compact, full-function radio altimeter that complies with aerospace standards, it serves as a key component for longitudinal altitude channel control and can be widely used in cruise missiles and UAVs to measure height relative to sea level or the ground. The MY-1000 adopts linear modulation coefficient technology adaptive to height changes and echo signal narrow-band receiving technology to enhance the product’s resistance to active interference, uses coherent local oscillator mixing to achieve superior performance in resisting co-frequency asynchronous interference, employs echo signal spectrum front detection technology to improve tracking accuracy, and follows the three design principles of serialization, standardization, and modularization—endowing it with good product inheritance, maturity, and reliability.

MDY-01 Radar Seeker

A radar seeker is a radar device installed on missiles, primarily used for target detection and tracking. It provides target position and motion parameters to the missile’s control system, thereby guiding the missile to fly toward the target. The MDY-01 radar seeker is characterized by high measurement accuracy, strong environmental adaptability, and high reliability.

Subminiature Radio Altimeter MY-70A

The MY-70A radio altimeter is a solid-state C-band radio altimeter system based on frequency-modulated continuous wave (FMCW) technology, featuring constant beat frequency and closed-loop tracking measurement. It maintains a constant beat frequency by servo-controlling the slope of the sawtooth wave that modulates the microwave oscillator, thereby achieving automatic altitude tracking. Under the condition of a constant beat frequency, the measured altitude is proportional to the modulation period; thus, altitude information can be acquired by measuring the modulation period, and the system then converts this information into an altitude voltage for output. The MY-70A altimeter boasts excellent anti-jamming performance, thanks to its adoption of a narrow-band receiver (with gain adjustable according to altitude), as well as technologies including equivalent spectrum front-end detection, weighted frequency identification, and automatic servo tracking. Additionally, the altimeter’s high-frequency components are implemented with microwave integration, while its low-frequency components utilize a modular design—these measures collectively enhance the product’s reliability, anti-interference capability, and electromagnetic compatibility.