SURV301 - L23 Quiz

Which of the following errors originates from the satellite segment in GNSS systems?

• Ionospheric Delay

• Receiver Noise

• Satellite Ephemeris Error

• Multipath Interference

What is the primary reason for using dual-frequency receivers in GNSS?

• To mostly eliminate ionospheric delay

• To improve battery life

• To increase the number of satellites tracked

• To eliminate tropospheric delay

What is the impact of satellite clock errors on GNSS measurements?

• They result in a range error due to time synchronization errors

• They have no impact on GNSS measurements

• They improve the accuracy of GNSS positioning

• They cause a delay in signal transmission

Which error is primarily caused by the bending and slowing of GNSS signals due to water vapor?

• Ionospheric Delay

• Tropospheric Wet Delay

• Multipath Error

• Satellite Orbit Error

What is the main challenge in resolving integer ambiguities in GNSS carrier phase measurements?

• The complexity of the satellite clock errors

• The similarity of ambiguity size to measurement errors

• The lack of precise atomic clocks

• The presence of cycle slips

Which of the following techniques can help minimize the impact of multipath signals in GNSS measurements?

• Using a low-gain antenna

• Placing the receiver near large metal objects

• Installing a ground plane beneath the antenna

• Reducing the sampling rate

What impact can ionospheric disturbances during geomagnetic storms have on GNSS signal reception?

• They eliminate all interference for GNSS signals

• They can degrade the quality and reliability of GNSS positioning

• They have no measurable effect on GNSS signals

• They always increase the number of visible satellites

What is the role of the International GNSS Service (IGS)?

• To regulate GNSS signal frequencies

• To provide global products like orbits and satellite clocks

• To launch GNSS satellites

• To manufacture GNSS receivers

Which error is characterized by a sudden jump in the carrier phase by an integer number of cycles?

• Multipath Error

• Cycle Slip

• Tropospheric Delay

• Satellite Clock Error

What is the main effect of multipath interference on GNSS measurements?

• It increases the number of visible satellites

• It causes errors by reflecting signals off nearby surfaces

• It eliminates tropospheric delay

• It synchronizes satellite clocks