Radar Target Simulator

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"The NI hardware and software configuration allowed us to develop a coherent imitator for checking individual radar stations and blocks of high RF path."

- Vahan Grigoryan, Insol LLC

The Challenge:
Developing a product to inspect and test radar stations and individual blocks of high RF path.

The Solution:
Combining the benefits of the LabVIEW software, vector signal transceivers, the FlexRIO FPGA Module, and a FlexRIO RF transceiver to create a coherent simulator of radar response.

Author(s):
Vahan Grigoryan - Find this author in the NI Developer Community
Artur Galstyan - Insol LLC

About Insol

Insol is a professional engineering company that specializes in RF and optics. We deliver a wide range of engineering services, including creating advanced systems, software development consulting, R&D, and related services. We use NI graphical system design technologies to implement designs, prototypes, and deployments. Our experienced team has obtained an exclusive practical and theoretical knowledge in RF. We have developed solutions that have been successfully implemented and used at different companies in Russia and the United States.

Problem Background and Solution

Individual radar stations and blocks of high RF path need to be checked and tested therefore we developed an imitator to imitate a radar target by contributing delays and frequency shifts in the received signal, followed by re-emission. The imitator features two modes of operation:

  • Direct control of the time delay, frequency offset, gain (Δt, Δf, ΔA)
  • Control of distance, speed, effective scattering surface, and where the calculation of Δt, Δf, ΔA is done automatically according to the radar equation

We intend to use our coherent simulator of radar response to simulate the radar target by introducing delay and frequency offset in the received signal with the following re-emission. We calculate Δt, Δf, ΔA automatically according to the radar equation to control distance, speed, and effective scattering surface.

LabVIEW software makes it easier and faster to produce a code with nice graphical user interfaces. We used the following NI software and NI hardware for this project:

NI Software

During the simulation, it is possible to load a radiation diagram template in the manual mode and control the following parameters:

  • Height
  • Angle
  • Rotation speed

Principle of operation of the imitator

NI Hardware

According to the hardware parameters, we can support the system with following designations:

  • Hekate 100/6600/80
  • Hekate 200/4400/100
  • Hekate 100/6600/200

Technical Characteristics

 

Hekate 100 / 6600 / 80

Hekate 200 / 4400 / 100

Hekate 100 / 6600 / 200

Frequency

Minimum

100 MHz

200 MHz

100 MHz

Maximum

6600 MHz

4400 MHz

6600 MHz

Bandwidth

80 MHz

100 MHz

200 MHz

Delay

Minimum

2 μs

2 μs

2 μs

Maximum

500 μs

250 μs

500 μs

Discreetness

not worse 50 ns

not worse 40 ns

not worse 30 ns

Accuracy

not worse 10

not worse 8

not worse 5

Mixing Frequency

Minimum

0,5 MHz

0,5 MHz

0,5 MHz

Maximum

1 MHz

2 MHz

3 MHz

Accuracy

0,1 MHz

0,1 MHz

0,1 MHz

 

We attended trainings for LabVIEW Core 1, LabVIEW Core 2, LabVIEW Core 3, LabVIEW FPGA, and more, which helped us with the project’s code writing. This also helped us pass the LabVIEW certification exams.

Using NI technology helped us easily and quickly develop a solution. We used the range of choices of modular instruments and LabVIEW to quickly and easily create the program code and a beautiful graphical user interface. We decreased development time and increased overall cost savings because of NI off-the-shelf technology and a simplified programming approach. We interacted with the NI SE Team throughout the project.

The Benefits of Our New Solution

  • Direct control of the time delay, frequency offset, gain (Δt, Δf, ΔA)
  • Control of distance, speed, effective scattering surface.
  • Methods of controlling the parameters of imitation: manual mode, from the path file, external control of third-party programs.
  • Indication of the calculated parameters of attenuation, delay, frequency shift, gain

Author Information:
Vahan Grigoryan
Find this author in the NI Developer Community

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