What is a processing board?

1. What is processing board?
2. What are advantages of onboard processing satellite?
3. What is meant by transponder Mcq?
4. What are the various orbital effects in communication system performance?
5. What is meant by Intelsat?
6. Which bandwidth is more efficient?
7. Why FM is used in satellite communication?
8. What is apogee and perigee?
9. What are look angles?
10. What is Omega orbit?
11. Is Intelsat dead?
12. What is the maximum sun outage time Mcq?
13. Which type of modulation is best?
14. What circuit produces BPSK?

What is processing board?

Processing boards play a major role in embedded vision. These boards can be designed in a variety of ways. Depending on the unit count, know-how, type of subordinate systems and image processing needs, a range of different concepts are available.

What are advantages of onboard processing satellite?

Onboard processing can also be used to reduce bit error rates for the uplink and downlink transmissions and to allow satellites to be optimized to provide a wider range of service applications more efficiently.

What is meant by transponder Mcq?

Explanation: The transmitter-receiver combination in the satellite is known as a transponder. The basic functions of a transponder are amplification and frequency translation.

What are the various orbital effects in communication system performance?

Effects of orbital perturbations on communications. Launching of satellites into the geostationary orbit. The closer the satellite to the earth, the stronger is the effect of earth's gravitational pull. So, in low orbits, the satellite must travel faster to avoid falling back to the earth.

What is meant by Intelsat?

Intelsat was originally formed as the International Telecommunications Satellite Organization (INTELSAT). ... From 1964 to 2001 it was an intergovernmental conglomerate that owned and managed a group of communication satellites that provided international broadcast services.

Which bandwidth is more efficient?

4. Which is more bandwidth efficient? Explanation: Time hopping spread spectrum is more bandwidth efficient.

Why FM is used in satellite communication?

In the case of FM, Bandwith is large and noise immunity is high that's why it is used in satellite communication. whereas in AM B.W is 2 f_m, in DSB-SC BW is 2 f_m, SSB-SC BW is f_m. So we can see the B.W of FM is large, as compared to other schemes.

What is apogee and perigee?

Perigee and Apogee. ... The point at which it is nearest Earth each month is called its perigee (this varies throughout the year). The point at which the Moon is farthest from Earth each month is called its apogee (this varies throughout the year as well).

What are look angles?

Look angles are required such that the earth station antenna points or "looks at" the satellite directly. From a location on earth, the 2 look angles that are needed are Azimuth and Elevation. Since XTAR satellites are geostationary, these look angles are constant for fixed ground antennas.

What is Omega orbit?

Argument of periapsis (ω) defines the orientation of the ellipse in the orbital plane, as an angle measured from the ascending node to the periapsis (the closest point the satellite object comes to the primary object around which it orbits, the blue angle ω in the diagram).

Is Intelsat dead?

Bankruptcy. Intelsat filed for a Chapter 11 bankruptcy in U.S. courts on 13 May 2020, just before the new 5G spectrum auctions, with over US$15 billion in total debt.

What is the maximum sun outage time Mcq?

They occur for a maximum period of 10 minutes. Generally, sun outages occur in February, March, September and October, that is, around the time of the equinoxes. At these times, the apparent path of the sun across the sky takes it directly behind the line of sight between an earth station and a satellite.

Which type of modulation is best?

Amplitude modulation methods like ASK/OOK and QAM are far more susceptible to noise so they have a higher BER for a given modulation. Phase and frequency modulation (BPSK, FSK, etc.) fare better in a noisy environment so they require less signal power for a given noise level (Fig.

What circuit produces BPSK?

The block diagram of BPSK demodulator consists of a mixer with local oscillator circuit, a bandpass filter, a two-input detector circuit.