Abstract: A method includes receiving a data population and a plurality of constraints. The data population includes a plurality of units. Each unit includes a plurality of respective values. Each value corresponds to a respective parameter. Each constraint corresponds to a respective parameter. A holistic feature of the data population is determined. A volume is defined in the parameter space based on the plurality of constraints. For each unit of a current data population, a first vector representing a respective unit is subtracted from a second vector representing a current holistic feature to determine a third vector. For each third vector, a distance between a point defined by a respective third vector and the volume is determined. A minimum distance is determined from determined distances. The current data population is transformed into an updated data population by removing a unit that corresponds to the minimum distance from the current data population.

Abstract: A method includes receiving a data population and a plurality of constraints. The data population includes a plurality of units. Each unit includes a plurality of respective values. Each value corresponds to a respective parameter. Each constraint corresponds to a respective parameter. A holistic feature of the data population is determined. A volume is defined in the parameter space based on the plurality of constraints. For each unit of a current data population, a first vector representing a respective unit is subtracted from a second vector representing a current holistic feature to determine a third vector. For each third vector, a distance between a point defined by a respective third vector and the volume is determined. A minimum distance is determined from determined distances. The current data population is transformed into an updated data population by removing a unit that corresponds to the minimum distance from the current data population.

Abstract: A method of FSK decoding includes generating a pulse waveform (R'Edge) from a received FSK encoded signal (FSK signal) and a system clock (Sys_clk). From R'Edge and Sys_clk clocks are generated including a first clock and second clock framing a logic ‘0’ level of the FSK signal, and a third clock and fourth clock framing a logic ‘1’ level of the FSK signal. At least four frequency envelopes are generated from the clocks including a logic ‘0’ envelope, a logic ‘1’ envelope, a lower frequency envelope below the logic ‘0’ envelope, and an upper frequency envelope above the logic ‘1’ envelope. R'Edge is compared to the four envelopes, and a decoded output is produced, logic ‘0’ if the R'Edge overlaps the logic ‘0’ envelope, logic ‘1’ if R'Edge overlaps the logic ‘1’ envelope, and a previous output state if R'Edge does not overlap the logic ‘0’ or logic ‘1’ envelope.