Getting better all the time - The Continued Evolution of the GNSS Software-Defined Radio

Software Defined Radio (SDR) has an infinite number of interpretations depending on the
context in which it is designed and used. By way of a starting definition the authors choose
to use that of ‘a reconfigurable radio system whose characteristics are partially or fully
defined via software or firmware’. In various forms, SDR has permeated a wide range of
user groups, from military, business, academia and to the amateur radio enthusiast.