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were able to use in this project.

A small influence on latency was

noticed when simulating a large

number of targets. This was an

important discovery because within

this project there was a need to

perform calculations on many targets

in order to build a picture of the

object shapes.

very quickly. Because the SAR had

to contain several RF parts such as

a signal generator, an RF transmitter,

an antenna, an RF receiver moving

target detector (MTD), the students

used high-frequency design software,

which enabled them to successfully

complete their design project.

Figure 1. Amplitude presentation of multiple targets with additive white

Gaussian Noise

Figure 2. The antenna radiation

pattern shown in AXIEM EM

simulator

Conclusion

Students at the Technion – Israel

Institute of Technology SAMPL Lab

built an efficient, easy-to-use SAR

simulator that could be connected to

MATLAB for signal processing, thereby

significantly speeding up design time.

The simulator could handle many

targets on the surface and perform

Figure 3. Transmitted signal waveform chirp

with a set pulse repetition Interval shown in red.

Signals returning back from the targets are shown

in blue. The pink waveform shows the returning

signals after the match filtering process

Figure 4. Top view of the hierarchical design in VSS,

including chirp generator, target models, control

blocks, and MATLAB blocks for co-simulation and signal

processing

New-Tech Magazine Europe l 25