The Radar dictionary contains classes that support radar observations. This class contains attributes that describe metadata pertinent to radar observations / data from Arecibo, Goldstone, and similar installations. Quality This class is the top level class that contains other radar classes, separated by sub-discipline. Sampling Properties Target Properties Transmission properties This section contains the simpleTypes that provide more constraints than those at the base data type level. The simpleTypes defined here build on the base data types. This is another component of the common dictionary and therefore falls within the common namespace. total matched-filter signal-to-noise ratio in one run, expressed in db total matched-filter signal-to-noise ratio in one run, expressed as an actual ratio Type of radar experiment being performed. Simpler experiments can have higher signal-to-noise or simpler hardware configurations, while more complicated experiments provide more information. ‘Range’ and ‘Total Power’ are mostly historical. number of pixels in an image with measurable signal For repeating waveforms including pulse patterns, the frequency at which the waveform or pulse pattern repeats. For repeating waveforms including pulse patterns, the interval from the beginning of one waveform or pulse pattern to the beginning of the next. Range depth in units of range_resolution. This is an indicator of observation usefulness for analysis Range depth in units of range_resolution. This is an indicator of observation usefulness for analysis Range resolution of products, expressed in units of distance. The minimum separation distance that can be resolved between two closely spaced targets by a radar. Range resolution of products, expressed in units of time. The minimum separation distance that can be resolved between two closely spaced targets by a radar. For a data acquisition system, the interval between the beginning of one time sample and the beginning of the next time sample. For a data acquisition system, whether the time samples are real values or complex value pairs obtained simultaneously. Does not imply a numeric format. Sample Type is whether the (usually voltage) samples are single real values or a complex number pair (a + ib), which depends on the hardware used to do it. In either case, the numbers themselves can be any numeric type. In raw form, they are usually few-bit integers or pairs of few-bit integers. But they may get converted to floating point in processing if filtering is done in software. transmitter power input to antenna Distance from the transmitter, to the target, and back to the reciever at the time of observation, expressed as lighttime.