Compare multiple cross sections over time hypack

#COMPARE MULTIPLE CROSS SECTIONS OVER TIME HYPACK PATCH#

Slide 8 HYPACK Multibeam Training Seminar8 Yaw Test Sonar and Gyro alignment relative to boat frame.Sonar and Gyro alignment relative to boat frame. Can cause depth and position errors across the swath. Sonar and MRU alignment relative to vertical. Slide 7 HYPACK Multibeam Training Seminar7 Pitch Test Sonar and MRU alignment relative to vertical. Can cause Positional ErrorsCan cause Positional Errors Error is independent of multibeam system.Error is independent of multibeam system. Slide 6 HYPACK Multibeam Training Seminar6 Latency Test Delay between position fix and data arrival time.Delay between position fix and data arrival time. Can cause large depth errors at outer beams. Slide 5 HYPACK Multibeam Training Seminar5 Roll Test Sonar and MRU alignment relative to vertical.

#COMPARE MULTIPLE CROSS SECTIONS OVER TIME HYPACK PATCH#

Open HYPACK and HYSWEEP Survey programs and begin collecting Patch test data. Locate area to perform Patch Test and layout runlines for each Test. 2HYPACK Multibeam Training Seminar Slide 3 HYPACK Multibeam Training Seminar3 Four (4) Individual Tests Four (4) Individual Tests Three (3) that determine the physical misalignments of the multibeam transducer (Roll-Pitch- Yaw) Three (3) that determine the physical misalignments of the multibeam transducer (Roll-Pitch- Yaw) One (1) that determines the Latency, or lack of synchronization between the Position and Depth data acquisition One (1) that determines the Latency, or lack of synchronization between the Position and Depth data acquisition What is a PATCH TEST Fore-Aft Axis Vertical Axis Athwartship Axis Latency effect not shown Slide 4 HYPACK Multibeam Training Seminar4 Patch Test Checklist Measure Equipment Location Offsets with Respect to Boat Reference Point Measure Equipment Location Offsets with Respect to Boat Reference Point (X Port/Starboard, Y Forward/Aft, Z Vertical) (X Port/Starboard, Y Forward/Aft, Z Vertical) Enter these Offsets in their respective Devices in the HYPACK and HYSWEEP Hardware Programs Leave Roll, Pitch, and Yaw values in the Multibeams Device as all Zeros (0.0) (Unless performing a check Patch Test for an existing setup.) Leave Latency value in HYPACK Navigation as Zero (0.0) (Unless performing a check Patch Test for an existing setup.) Locate area to perform Patch Test and layout runlines for each Test. This is not an Exact Science) USACE Requirements for Patch Testing (EM03) Patch tests are performed after initial installation, and periodically thereafter if sensors are modified, to quantify any residual biases from the initial system alignment.Patch tests are performed after initial installation, and periodically thereafter if sensors are modified, to quantify any residual biases from the initial system alignment. PATCH TEST HYPACK MULTIBEAM COURSE 1HYPACK Multibeam Training Seminar Slide 2 HYSWEEP Calibration of a Multibeam System (Using Statistical Analysis of the collected data.

Compare multiple cross sections over time hypack