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Topic: The Radar Equation
A monostatic radar operates at 4 GHz and has a directive gain...
2. A search radar operates at 5 GHz by sending 3 MW pulses of 20 uus...
2. A search radar operates at 5 GHz by sending 3 MW pulses of 20 uus pulse duration. The gain of the radar antenna is 28 dB and the equivalent system noise temperature is 1400°K. The system loss is 1 dB. The radar cross section of a typical airplane viewed from the front is 30 mp. If the minimum signal-to-noise ratio (SNR) needed for detection is 20 dB, what is the maximum detectable range of the search radar?
Q: (a) The antenna of a 38 cm radius dish used as a satellite receiver in...
Q: (a) The antenna of a 38 cm radius dish used as a satellite receiver in the Ka-band is 25.5 GHz - It operates in the 31.5 GHz frequency band. Find out where the far-field region begins for this antenna. (b) A radar operating in monostatic configuration broadcasts at 10KW power and the receiving power of this radar sensitivity is 12 pW. The gain of the radar antenna at 12 GHz in the maximum radiation direction is 16 dB. This...
Radar systems
Consider a radar with the following specifications: f = 1250MHz, maximum radar range of 220 nautical miles, for target with radar cross section σ = 1m ^ 2 with radar antenna dimensions 12 × 4m Antenna aperture efficiency ε_a = 0.55, minimum detectable signal of a pulse S_npn = 10 ^ (- 13) W and pulse width τ = 1.5μs. Calculate the following values: A) Effective A_em aperture level and G gain in terms of dB radar antenna. B) Transmitter...
21) The US Air Force is planning to attack an enemy facility using B-2 stealth bombers. Human int...
21) The US Air Force is planning to attack an enemy facility using B-2 stealth bombers. Human intelligence suggests the enemy early warning radar has the following parameters: 5.6 GHz carrier signal, 1.5 MW peak power, 45 dB antenna gain, 290 K noise-effective temperature, and a 0.2 microsecond pulse length. The minimum SNR threshold for target detection is estimated to be 20 dB and the radar cross section for the B 2 is 0.1 m2. Find the range at which...
Q.7. Assume a radar receiver with gain of 100, has an IF bandwidth of 4GHz, and...
Q.7. Assume a radar receiver with gain of 100, has an IF bandwidth of 4GHz, and a noise figure [10M] of 6.3, transmitting 31.62KW of power at a frequency of 8 GHz, for a target cross section of 8m². (Assume TO = 290 degrees kelvin., and k= 1.38 x10-23) A. Convert radar equation into decibel e radar equation, applying decimal log on both sides and find the new equation for range, [4M] B. Convert all the values into decibel and...
QUESTION 12, 13, 14???? In 3.14, can write Gt and Gr directly in the answer, or...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
How can we assess whether a project is a success or a failure? This case presents...
How can we assess whether a project is a success or a
failure?
This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...
2. A search radar operates at 5 GHz by sending 3 MW pulses of 20 uus pulse duration. The gain of the radar antenna is 28 dB and the equivalent system noise temperature is 1400°K. The system loss is 1 dB. The radar cross section of a typical airplane viewed from the front is 30 mp. If the minimum signal-to-noise ratio (SNR) needed for detection is 20 dB, what is the maximum detectable range of the search radar?
Q: (a) The antenna of a 38 cm radius dish used as a satellite receiver in the Ka-band is 25.5 GHz - It operates in the 31.5 GHz frequency band. Find out where the far-field region begins for this antenna. (b) A radar operating in monostatic configuration broadcasts at 10KW power and the receiving power of this radar sensitivity is 12 pW. The gain of the radar antenna at 12 GHz in the maximum radiation direction is 16 dB. This...
21) The US Air Force is planning to attack an enemy facility using B-2 stealth bombers. Human intelligence suggests the enemy early warning radar has the following parameters: 5.6 GHz carrier signal, 1.5 MW peak power, 45 dB antenna gain, 290 K noise-effective temperature, and a 0.2 microsecond pulse length. The minimum SNR threshold for target detection is estimated to be 20 dB and the radar cross section for the B 2 is 0.1 m2. Find the range at which...
Q.7. Assume a radar receiver with gain of 100, has an IF bandwidth of 4GHz, and a noise figure [10M] of 6.3, transmitting 31.62KW of power at a frequency of 8 GHz, for a target cross section of 8m². (Assume TO = 290 degrees kelvin., and k= 1.38 x10-23) A. Convert radar equation into decibel e radar equation, applying decimal log on both sides and find the new equation for range, [4M] B. Convert all the values into decibel and...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
How can we assess whether a project is a success or a
failure?
This case presents two phases of a large business transformation project involving the implementation of an ERP system with the aim of creating an integrated company. The case illustrates some of the challenges associated with integration. It also presents the obstacles facing companies that undertake projects involving large information technology projects. Bombardier and Its Environment Joseph-Armand Bombardier was 15 years old when he built his first snowmobile...
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