ELEC 30006 Middle East College Geostationary Satellite and The Earth Worksheet

Analyse and apply the concept of link budget in satellite communication; Analyse various satellite architecture and applications

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IN SEMESTER (INDIVIDUAL) ASSIGNMENT 2
Module Code: ELEC 30006	Module Name: Radar Theory and Satellite Communication
Level: 3	Max. Marks: 100

 

Instructions to Student

• Answer all
• Deadline of submission: 05/07/2020     23:59
• Viva date: 05/07/2020 to 07/07/2020
• The marks received on the assignment will be scaled down to the actual weightage of the assignment, which is 50 marks.
• Formative feedback on the complete assignment draft will be provided if the draft is submitted at least 10 days before the final submission date.
• Feedback after final evaluation will be provided by 12/07/2020

 

Module Learning Outcomes

The following LOs are achieved by the student by completing the assignment successfully

 

• Analyse and apply the concept of link budget in satellite communication;
• Analyse various satellite architecture and applications.

 

Assignment Objective

This assignment is to analyze the level of understanding of the student through this assessment, a consistent feedback can be drawn. Through this work, students will be able to aanalyse the key factors effecting the link budget in satellite communication, analysis of various satellite architectures and applications. Student will get a chance to explore current industry standards and practices along with learning the theory behind them.

 

Rules & Regulations:

• All resources should be cited using CU Harvard style.
• The final assignment must have a Title page, Table of Contents, References/ bibliography using CU Harvard Style and page numbers. Format will be uploaded on Moodle.
• Title Page must have Assignment Name, Module name, Session, your name, ID, and the name of the faculty.
• Softcopy in word format is to be submitted through Turnitin link on Moodle.
• Viva will be conducted after the assignment submission as per the dates informed earlier.

Guidelines:

• Assignment must be computer typed.
  • Font – Times New Roman
  • Font – Style – Regular
  • Font – Size – 12
  • Heading should be with Font Size 14, Bold, Capital and Underline.
  • Explain with suitable diagrams wherever required. Diagrams must be drawn using suitable software or by pencil.
• Each student has to do the assignment individually.

• You can refer books in eLibrary or use internet resource. But you should not cut and paste material from internet nor provide photocopied material from books. The assignment answers should be in your own words after understanding the matter from the above resources.

 

Important Policies to be followed

1. Student Academic Integrity Policy*:

MEC upholds the spirit of academic integrity in all forms of academic work and any form of violation of academic integrity shall invite severe penalty. Any benefit obtained by indulging in the act of violation of academic integrity shall be cancelled.

All cases of violation of academic integrity on the part of the student shall fall under any of the below mentioned categories:

1. Plagiarism
2. Malpractice
3. Ghost Writing
4. Collusion
5. Other cases

If the student fails a module and has a proven case of academic integrity violation in this module, the student is required to re-register the module. This is applicable to first and second offenders of plagiarism.

1. Plagiarism
2. First offence of plagiarism
3. If a student is caught first time in an act of plagiarism during his/her course of study in any assignment other than project work, the student will be allowed to re-submit the assignment once, within a maximum period of one week. However, a penalty of deduction of 25% of the marks obtained for the resubmitted work will be imposed.
4. Period of re-submission: The student will have to re-submit the work one week from the date he or she is advised to re-submit.

• If the re-submitted work is also found to be plagiarized, then that assessment will be awarded a zero mark. Re-submission of the work beyond the maximum period of one week will not be accepted and the assessment will be awarded a zero mark.

1. Second offence of plagiarism

If any student is caught second time in an act of plagiarism during his/her course of study (in a subsequent semester), the student will directly be awarded zero for the work in which plagiarism is detected. In such cases, the student will not be allowed to resubmit the work. A warning of suspension shall be issued, and student has to sign an undertaking and undergo counselling session in such cases.

2. Malpractice/Ghostwriting/Collusion
3. First offence of Malpractice/Ghostwriting/Collusion

If a student is caught in an act of Malpractice/Ghostwriting/Collusion for an assessment component irrespective of coursework or end semester, the student shall fail the module and shall be required to re-register the module

1. Second Offence of Malpractice/Ghostwriting/Collusion

If a student is caught a second time in an act of Malpractice/Ghostwriting/Collusion for an assessment component irrespective of coursework or end semester, the student shall fail the module. A warning of suspension shall be issued, and student has to sign an undertaking and undergo counselling session in such cases.

3. Third Offence of Academic Integrity Violation

If a student is caught a third time in an act of Academic Integrity Violation for an assessment component irrespective of coursework or end semester (in a subsequent semester), the student shall fail the module and also shall be suspended for one semester from the College, as recommended by institutional level academic committee, Chaired by the Associate Dean, Academic Affairs.

 

4. Fourth Offence of Academic Integrity Violation:

If a student is caught a fourth time in an act of Academic Integrity Violation for an assessment component irrespective of coursework or end semester (in a subsequent semester), the student shall fail the module and also shall be expelled from the College, as recommended by institutional level academic committee, Chaired by the Associate Dean, Academic Affairs.

 

5. Other cases

If a student commits an act of academic integrity violation as per the definition of “other cases” mentioned in the previous section or of a different nature, student’s case shall be forwarded to an institutional level academic committee, Chaired by the Associate Dean, Academic Affairs. The committee shall investigate the case by means of a viva and/or a disciplinary hearing and shall take appropriate decision. The penalty that can be granted to a proven case of academic integrity violation which falls in this category of “other cases” can be a warning/component zero/ module fail/suspension/expulsion depending on the nature and gravity of the offence.

 

6. Types/Variations of Cases:

1. If plagiarism is detected in any component of one assessment, the deduction in marks will be applicable for the whole assessment, even if only the component or part submission alone needs to be resubmitted.
2. If plagiarism is detected in a group assessment, all students of the group will be considered as having committed an act of plagiarism and the policy will then be applied to all students
3. If plagiarism is detected in any component of a group assessment, the deduction in marks will be applicable for the whole assessment even if only the component or part submission alone needs to be resubmitted.

All students of the group would be considered as having committed an act of plagiarism and the policy will then be applied to all the students of the group.

1. If the assessment consists of components or part submissions that could be a group assessment component (e.g. group assignment) and an individual assessment component (e.g. individual reflection), the following will be applicable:
   1. If plagiarism is detected in the group assessment component, all students of the group will be considered as having committed an act of plagiarism, The policy will then be applied to all students of the group.  Group assessment component will be resubmitted as per the policy.
   2. If plagiarism is detected in the individual assessment component, the individual assessment component will be resubmitted and the policy will then be applied to that student alone.
   3.  For both (a) and/or (b), the deduction in marks will be applicable for the whole assessment.

* for further details Refer to MEC Student Academic Integrity Policy in Student Handbook.          

2.      Late Submission Regulations:

It is the students’ responsibility to check all relevant timelines related to assessments.

As per the Assessment Policy at MEC, late submissions are allowed for one week (5 working days) for all UG modules with a penalty. In such cases, a deduction of 5% of the marks obtained for the submitted work shall be imposed for each working  day  following  the  last  date  of  submission  till  the  date  of  actual  submission. Assessment documents submitted beyond a period of one week (5 working days) after the last date of submission will not be accepted and will be awarded a zero for that assessment. In cases where the submission has been delayed due to extenuating circumstances, the student may be permitted to submit the work without imposing the late submission policy stated above. The extended period of submission will be one week from the original last date of submission. In such cases, the student is expected to submit the supporting certificates on or before the original last date of submission of the assessment and the decision of extension rests with faculty responsible for the assessment .The late submission policy shall be applied if the student fails to submit the work within one week of the original last date of submission.

Students may contact their teachers for clarification on specific details of the submission time if required.

3.      Research Ethics and Biosafety Policy

To protect and respect the rights, dignity, health, safety, and privacy of research subjects involved including the welfare of animals and the integrity of environment, all student projects are expected to be undertaken as per the MEC Research Ethics and Biosafety Policy. Accordingly the following shall apply.

• Research and other enterprise activities shall be conducted by maintaining the high ethical standards consistent with national and international standards and conventions.
• Any research at MEC that is categorized as high-risk research shall be subject to review and approval by the Research Ethics and Biosafety Committee.
• Research activities involving collection of human or animal tissues and manipulation of microbial, animal or plant cells shall be subject to review and approval by the Research Ethics and Biosafety Committee.
• Participants involved in research must be informed about the purpose of research and intended uses of research findings. Written consent must be obtained from people involved prior to the commencement of research.
• Data obtained from participants must be treated with high confidence and should be used only for the intended purpose of research.

 

Assignment Tasks:

1. 1. What is common between a geostationary satellite and the Earth? Give a comparison among geostationary and lower (LEO or MEO) satellite orbits.                                          (10 Marks)
   2. In a satellite communication system, an 1.2-m diameter parabolic dish antenna is being operated at 8.5 GHz:
2. Calculate the gain and beam-width of this antenna.       (6 Marks)
3. If we want to increase the beam-width to 3⁰ without changing the dimensions of antenna, what should be new operating frequency? (4 Marks)
4. 1. Provide a comparison of strategic and tactical communication techniques in military satellite applications.                                                                                                               (10 marks)
   2. A geostationary satellite is 42000 km above the earth surface. If the satellite latitude is 49^o north with respect to the earth station and the spherical earth mean radius is 6371 km. Calculate the satellite angle and the polarization angle .                                        (10 Marks)
5. 1. Enlist causes of losses, which do affect the satellite communication? Why rain is most important factor to be considered while designing a satellite communication link? Draw the schematic of a satellite link considering losses.                                                        (10 marks)
   2. The total required [C/N]_o value at the ground station receiver is 50.11 while the downlink [C/N]_d is 63.096. What value of [C/N]_u should an uplink have ?                                    (10 Marks)
6. 1. Discuss the back-off effect due to non-linear behavior of high power amplifier in satellites. How it is avoided?                                            (10 marks)
   2. A VSAT antenna must have a gain of 40 dB at a frequency of 11.5 GHz. Assume the 3dB beam-widths Ө₁ = Ө₂ and use the approximate expression for the gain to calculate:
      1. The antenna beam width; and                     (5 Marks)
      2. The antenna diameter.                   (5 Marks)

 

5. 1. Organize information about various components of GPS System. (10 Marks)
   2. A C-band satellite earth station has an antenna with a transmit gain of 54 dB and tansmit power of 20dB. The transmitter output power is set to 100 W at a frequency of 6.1 GHz. The signal is received by a satellite at a distance of 37,500 km by an antenna with a gain of 26 dB. The signal is then routed to a transponder with a noise temperature of 500 K, a bandwidth of 36 MHz, and a gain of 110 dB.
6. Calculate the path loss at 6.1 GHz;                                                              (3 Marks)
7. Calculate the power at the output port (sometimes called the output waveguide flange) of the satellite antenna, in dBW; and                                   (4 Marks)

• Calculate the noise power at the transponder input, in dBW.          (3 Marks)