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Radar and Satellite Navigation (30060)

 - MSc assignment 2023-24

1. In this individual assignment, you should prepare a combined, brief report presented in a scientific paper format and style on a specific topic of radar systems analysis. The format of the essay is specified in Section 3 of this document, and all submitted assignments should have the same structure.

2. Each student will have an individual task, taken from Section 2 of this document, and should develop a computer model of an appropriate system and demonstrate the computer simulation results as well as analytical analysis and their comparison, where appropriate.

3. Aim: Radar system analysis and modelling. It is assumed that a radar system is being designed for surveillance. As a part of the radar design, computer models for i) target detection, ii) the ambiguity function of the radar transmit waveform, and iii) outputs of a matched filter to a target echo at the background of noise should be generated. The outputs of the computer model should be compared to theoretical expectations, and should include analyses of simulated vs. predicted results. Each student will be assigned a random task between i)-iii), with different simulation parameters for each student.

Objectives:  The aim above is to be fulfilled by developing a computer model in MATLAB or/and Simulink, and presenting and analysing the simulation results. The final simulation results (intermediate ones may be used to strengthen the quality of the essay, where deemed appropriate) for each task are:

i) Target detection: a graph should be presented, with the probability of detection as the vertical axis, signal to noise ratio as the horizontal axis, and the probability of false alarm as a parameter. On the same graph the result of analytical calculations, e.g. Barton method, could be presented and in the conclusion comparison of modelling and calculation results should be presented.

ii) Ambiguity function: a surface plot should be presented, showing the magnitude of the ambiguity function in dB with delay and Doppler as the horizontal/vertical axes. Graphs showing cross-sections of the ambiguity function at zero range and at zero Doppler should be presented, and in the conclusion a comparison of the simulated vs theoretically expected range and Doppler resolutions should be given.

iii) Matched filtering: two graphs should be presented. The first one should show the magnitude of the matched filter output vs target range as the horizontal axis for a given target echo in the absence of noise. The second one should be similar to the first, but for a given signal-to-noise ratio (SNR) at the output at the radar receive antenna assuming additive white gaussian noise. In the conclusion, a comparison of the simulated vs theoretically expected peak-to-sidelobe ratio and a comparison of the simulated vs theoretically expected SNR at the output of the matched filter should be presented. To create these graphs you should first emulate an echo signal from a target at a given distance, for a single transmit signal, and then apply the appropriate matched filter.

4. The main text of the essay length should be between 2000 (minimum) and 3000 (maximum) words plus tables, figures and, if necessary, appendices according to the attached template. Appendices should include MATLAB code listings, where possible. NOTE: It is expected that all results presented by students are the result of their own MATLAB code. Results directly obtained from the MATLAB Phased Array Toolbox may be used at the students’ discretion to cross-check their own results, however they are not acceptable as answers on their own. Therefore, results presented without accompanying codes will receive a 30% penalty.

5. In the assignment students should:

• Demonstrate knowledge in the specific radar system area;

• Analyse the main technical challenges and performance limitations;

• Develop a MATLAB or/and Simulink system model;

• Introduce the simulation results and analyse these results vs analytical results;

• Formulate the appropriate conclusions;

• Demonstrate scientific communication skills

6. The assessment criteria are detailed on the last page of this document

Plagiarism, which includes, but is not limited to, a failure to acknowledge sources will be

penalised.  For further information on plagiarism please see (you may need to log in)

https://intranet.birmingham.ac.uk/as/studentservices/conduct/plagiarism/guidance-students.aspx

Submission: Assignments should be submitted on Canvas, as .pdf files, by Friday 8^th March, at 23:59. Late submission will be penalised at 5% per day late.  

Recommended textbooks: The main recommended textbooks are

"Radar System Analysis and Modeling",  by David Barton (any edition);

"Radar Systems Analysis and Design Using MATLAB", by Bassem R. Mahafza (any edition)

“Principles of Modern Radar, vol.1: Basic Principles”, by M. A. Richards, J.A. Scheer, W.A. Holm

“Bistatic Radar: Principles and Practice”, by M. Cherniakov, as well as lecture notes

The given radar parameters per student are:

Matched filtering

Transmitted signal is the following M-sequence: 11100101, where logic “1” is 3V and logic “0” is -3V

Sequence duration= 2.5us

SNR at the output of the receive antenna = 10 dB

Target is fixed and located 10km away from the radar