# US 2015/0147985 A1 · Creation of radio waveforms according to a probability distribution using weighted parameters > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0147985 A1 - Document ID: US20150147985A1 - Status: Published application - Kind: A1 - Application number: 14/091,781 - Filed: 2013-11-27 - Published: 2015-05-28 - Earliest claimed: 2013-11-27 - Assignees: Raytheon Company - Applicants: Raytheon Company - Inventors: Harry B. Marr; Daniel Thompson; Jeffery J. Logan - Web page: https://patentgrep.com/patent/US20150147985A1 ## CPC - G06F 1/0321: {Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers (G06F1/0314, G06F1/035 take precedence)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Described herein are methods and systems capable of generating weighted parameter sets, which can be randomly addressed for dictating a waveform of each pulse to be generated by using a probability distribution function loader to load a memory table with waveform parameter values, wherein the values are loaded according to a weighted probability distribution function. Each value is then randomly addressed in the memory table and/or randomly selected from the memory table by a random number generator and fed into a signal generation circuit for creation of the waveform to be transmitted. ## Claims ### Claim 1 A radio waveform generation device, comprising: a signal generation circuit for generating a plurality of signals for transmission by the radio waveform generation device, each of the plurality of signals being characterized by at least one parameter, the signal generation circuit generating the plurality of signals using a respective plurality of values of the at least one parameter; and a memory for storing the plurality of values of the at least one parameter according to a predetermined probability distribution function, the signal generation circuit being configured to receive one of the values of the at least one parameter for each respective one of the generated plurality of signals and generate the one of the generated plurality of signals using the received one of the plurality of values of the parameter. ### Claim 2 (depends on 1) The radio waveform generation device of claim 1, wherein each value of the at least one parameter is stored in the memory in a quantity of repetitive occurrences, the quantity of repetitive occurrences of each value being determined according to the probability distribution function. ### Claim 3 (depends on 1) The radio waveform generation device of claim 1, wherein each value of the at least one parameter is selected from the memory at random for use by the signal generation circuit in generating the respective signal. ### Claim 4 (depends on 1) The radio waveform generation device of claim 1, wherein each value of the at least one parameter is loaded into the memory at random for use by the signal generation circuit in generating the respective signal. ### Claim 5 (depends on 1) The radio waveform generation device of claim 1, wherein each value of the at least one parameter is selected from the memory in accordance with a predetermined sequence for use by the signal generation circuit in generating the respective signal. ### Claim 6 (depends on 1) The radio waveform generation device of claim 1, wherein each value of the at least one parameter is loaded into the memory according to a predetermined sequence for use by the signal generation circuit in generating the respective signal. ### Claim 7 (depends on 1) The radio waveform generation device of claim 1, wherein the memory stores a second plurality of values of the at least one parameter according to a second predetermined probability distribution function. ### Claim 8 (depends on 7) The radio waveform generation device of claim 7, wherein the signal generation circuit generates a second plurality of signals for transmission by the radio waveform generation device, each of the second plurality of signals being characterized by the at least one parameter, the signal generation circuit being configured to generate the second plurality of signals respectively using the second plurality of values of the at least one parameter. ### Claim 9 (depends on 1) The radio waveform generation device of claim 1, wherein: each of the signals is characterized by at least one second parameter; the signal generation circuit generating the plurality of signals using a respective second plurality of values of the at least one second parameter; and the memory stores the second plurality of values of the at least one second parameter according to a second predetermined probability distribution function, the signal generation circuit receiving one of the second plurality of values of the at least one second parameter for each respective one of the generated plurality of signals and generating the one of the generated plurality of signals using the received one of the second plurality of values of the at least one parameter. ### Claim 10 (depends on 1) The radio waveform generation device of claim 1, wherein the at least one parameter is related to a center frequency of at least one of the plurality of signals. ### Claim 11 (depends on 1) The radio waveform generation device of claim 1, wherein the at least one parameter is related to noise characteristics related to at least one of the plurality of signals. ### Claim 12 (depends on 1) The radio waveform generation device of claim 1, wherein the at least one parameter is related to chirp characteristics related to at least one of the plurality of signals. ### Claim 13 (depends on 1) The radio waveform generation device of claim 1, wherein the at least one parameter is related to frequency-shift keying (FSK) parameters related to at least one of the plurality of signals. ### Claim 14 (depends on 1) The radio waveform generation device of claim 1, wherein the at least one parameter is related to inter-pulse modulation characteristics related to at least one of the plurality of signals. ### Claim 15 (depends on 1) The radio waveform generation device of claim 1, wherein the probability distribution function is at least one of a Gaussian distribution, a Rayleigh distribution, a normal distribution, a log-normal distribution, a gamma distribution, a binomial distribution, a Cauchy distribution, or a Weibull distribution. ### Claim 16 A method of generating radio frequency waveform signals in a radio waveform generation device, comprising: storing a plurality of values of at least one parameter according to a predetermined probability distribution function, the at least one parameter characterizing a plurality of signals for transmission by the radio waveform generation device; receiving one of the stored plurality of values of the at least one parameter for each respective one of the plurality of signals; and generating each respective one of the generated plurality of signals using the respective received one of the plurality of values of the parameter. ### Claim 17 (depends on 16) The method of claim 16, wherein each value of the at least one parameter is stored in a memory in a quantity of repetitive occurrences, the quantity of repetitive occurrences of each value being determined according to the probability distribution function. ### Claim 18 (depends on 17) The method of claim 17, wherein each value of the at least one parameter is selected from the memory at random for use in generating the respective signal. ### Claim 19 (depends on 17) The method of claim 17, wherein each value of the at least one parameter is loaded into the memory at random for use in generating the respective signal. ### Claim 20 (depends on 17) The method of claim 17, wherein each value of the at least one parameter is selected from the memory in accordance with a predetermined sequence for use in generating the respective signal. ### Claim 21 (depends on 17) The method of claim 17, wherein each value of the at least one parameter is loaded into the memory in accordance with a predetermined sequence for use in generating the respective signal. ### Claim 22 (depends on 16) The method of claim 16, further comprising storing a second plurality of values of the at least one parameter according to a second predetermined probability distribution function. ### Claim 23 (depends on 21) The method of claim 21, further comprising generating a second plurality of signals for transmission by the radio waveform generation device, each of the second plurality of signals being characterized by the at least one parameter, the second plurality of signals being generated using the second plurality of values of the at least one parameter, respectively. ### Claim 24 (depends on 16) The method of claim 16, wherein: each of the plurality of signals is characterized by at least one second parameter; the plurality of signals is generated using a respective second plurality of values of the at least one second parameter; and the second plurality of values of the at least one second parameter is stored according to a second predetermined probability distribution function, and one of the second plurality of values of the at least one second parameter is received for each respective one of the generated plurality of signals, and the received one of the second plurality of values of the at least one second parameter is used in generating the respective one of the generated plurality of signals. ### Claim 25 (depends on 16) The method of claim 16, wherein the at least one second parameter is related to a center frequency of at least one of the generated plurality of signals. ### Claim 26 (depends on 16) The method of claim 16, wherein the at least one parameter is related to noise characteristics related to at least one of the plurality of signals. ### Claim 27 (depends on 16) The method of claim 16, wherein the at least one parameter is related to chirp characteristics related to at least one of the plurality of signals. ### Claim 28 (depends on 16) The method of claim 16, wherein the at least one parameter is related to frequency-shift keying (FSK) parameters related to at least one of the plurality of signals. ### Claim 29 (depends on 16) The method of claim 16, wherein the at least one parameter is related to inter-pulse modulation characteristics related to at least one of the plurality of signals. ### Claim 30 (depends on 16) The method of claim 16, wherein the probability distribution function is one or more of a Gaussian distribution, a Rayleigh distribution, a normal distribution, a log-normal distribution, a gamma distribution, a binomial distribution, a Cauchy distribution, or a Weibull distribution.