Abstract: Disclosed is an MQ Telemetry Transport (MQTT) Data Logger and Processor for Near Real Time Data Analysis that is configured to subscribe to a Machine-to-Machine (M2M) network protocol and store all the messages sent to an MQTT broker. Once all of the messages have been logged, the presently disclosed invention further features cleans and places the data into a format that is usable or accessible by modeling and simulation (M&S) tool suites, as one example. These aspects can be utilized by test and evaluation (T&E) engineers to rapidly evaluate system characteristics and performance. Moreover, the disclosed methodology can be used to augment technical data within M&S scenarios for verification and validation (V&V) and post processing.

Abstract: Disclosed are methods and apparatus for recording time, latitude, longitude, frequency, and amplitude data to ascertain information about the radio frequency (RF) environment (e.g., RF emitter locations), where the apparatus is also easily transportable. The location determination method using this simple hardware solution may occur in two processes or phases: (1) a data collection phase; and (2) a data processing phase, although these two phases may also be combined in time for a real time solution. During the data collection phase, a user may select a desired frequency range and step size for analysis. A software defined radio (SDR) sweeps through the desired frequencies and records the amplitude associated with each frequency. Each of the recorded points are stamped with their time and geolocation (i.e., latitude and longitude coordinates) and processed using amplitude measurements to ascertain the locations of unknown emitters.