The primary instrument on board CYGNSS - a mission whose price tag is estimated at just $162 million - is the Delay
Doppler Mapping Instrument, which will use a GPS receiver and antennas to provide high-resolution imagery of the birth, evolution and hard-to-predict intensification of tropical cyclones.
Each observatory contains a delay
Doppler mapping instrument (DDMI) that consists of a multichannel GNSS-R receiver, a low-gain zenith antenna for reception of the direct signals, and two high-gain nadir antennas for reception of the surface scattered signals (Rose et al.
Consulting (1), (2) and (4), we can find that the
Doppler mapping can be done by the following scale Fourier transform,
Color
Doppler mapping can help to identify the presence of an anomalous and tortuous vessel, usually near left kidney or spleen following to caudal vena cava.
For more accurate haemodynamic information and assistance, we found that using TOE Doppler velocity analysis, then monitoring with a real time colour
Doppler mapping provided a quick and precise diagnosis during anterior mediastinal tumour resection.