# US 11,307,002 B2 · Missile warner and method for warning of a missile > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,002 B2 - Document ID: US11307002B2 - Status: Granted - Kind: B2 - Application number: 17/126,516 - Filed: 2020-12-18 - Published: 2021-09-02 - Granted: 2022-04-19 - Earliest claimed: 2019-12-18 - Assignees: HENSOLDT Sensors GmbH - Applicants: HENSOLDT Sensors GmbH - Inventors: Michael Assel - Web page: https://patentgrep.com/patent/US11307002B2 ## CPC - F41H 11/02: Anti-aircraft or anti-guided missile {or anti-torpedo} defence installations or systems (cartridges or missiles for producing smoke or for dispensing radar chaff or infrared material F42B5/15, F42B12/48, F42B12/70; {informative reference: details of radar or sonar systems G01S7/00; jamming or electronic countermeasures G01S7/38, G01S7/495, H04K3/00}) - G01S 3/783: using amplitude comparison of signals derived from static detectors or detector systems - F41G 7/224: {Deceiving or protecting means (jamming or anti-jamming of radio-wave systems in general G01S7/36, G01S7/38; defense installations in general F41H11/02; chaff dispensers F42B12/70)} - G08B 21/182: {Level alarms, e.g. alarms responsive to variables exceeding a threshold} - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B) - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS ## Abstract A missile warner includes a sensor, a recording device, and an evaluation unit. The sensor is configured to detect a potential missile. The recording device is configured to continuously store detector data generated by the sensor, for a predefined amount of time. The evaluation unit is configured: to recognize within the detector data, a detection signal of the potential missile, and to compare the detection signal with a declaration threshold value, and to generate, after the detection signal has exceeded the declaration threshold value, a warning signal of the potential missile, and to perform, upon the presence of the warning signal, a verification of the potential missile based on a temporal backtracking of the corresponding detection signal, wherein the backtracking includes an analysis of the stored detector data. ## Claims ### Claim 1 A missile warner, comprising: a sensor for detecting a potential missile; a recording device for a continuously storing detector data of the sensor for a predefined amount of time; an evaluation unit, configured to receive, in a pre-classification, detector data from the sensor, to recognize within the detector data a detection signal of the potential missile and to compare the detection signal with a declaration threshold value, and to generate, after the detection signal has exceeded the declaration threshold value, a warning signal of the potential missile, and to perform, in a classification, upon the presence of the warning signal, a verification of the potential missile by temporal backtracking of a corresponding detection signal, by using a stored detector data in the recording device, wherein the evaluation unit is further configured to recognize and trace, during the pre-classification, within the detector data a detection signal above a specific declaration threshold value, the specific declaration threshold value is below the declaration threshold value. ### Claim 2 (depends on 1) The missile warner according to claim 1, wherein the evaluation unit is configured to perform the pre-classification and the classification by using at least one of the detector data and the stored detector data of a single sensor. ### Claim 3 (depends on 1) The missile warner according to claim 1, wherein the evaluation unit is further configured to issue an alarm, the alarm being at least one of: an alarm upon the verification of the potential missile, and an alarm after the detection signal has attained a further declaration threshold value, wherein the further declaration threshold value is higher than the declaration threshold value of the warning signal. ### Claim 4 (depends on 1) The missile warner according to claim 1, wherein: the sensor or the evaluation unit are further configured to capture, during detection, a position or a direction of the potential missile, and the evaluation unit is configured to analyze the detector data and/or the stored detector data for a range around the position or the direction. ### Claim 5 (depends on 1) The missile warner according to claim 1, wherein the evaluation unit is configured to use, after generating the warning signal, information obtained from the detection signal during the pre-classification for the classification. ### Claim 6 (depends on 1) The missile warner according to claim 1, wherein the evaluation unit is configured to perform the temporal backtracking over time until a potential launch event, a launch event being at least one of a temporally localized maximum in the stored detector data and an earliest possible sensor signal obtained in the backtracking. ### Claim 7 (depends on 1) The missile warner according to claim 1, wherein a potentially dangerous missile displays a specific missile signature, and wherein the evaluation unit is further configured to compare, during the classification, at least sections of the detection signal within the stored detection data with the specific missile signature in order to classify the missile as potentially dangerous. ### Claim 8 (depends on 1) The missile warner according to claim 1, wherein said missile warner is a passive missile warner. ### Claim 9 A missile warner, comprising: a sensor for detecting a potential missile; a recording device for a continuously storing detector data of the sensor for a predefined amount of time; an evaluation unit, configured to receive, in a pre-classification, detector data from the sensor, to recognize within the detector data a detection signal of the potential missile and to compare the detection signal with a declaration threshold value, and to generate, after the detection signal has exceeded the declaration threshold value, a warning signal of the potential missile, and to perform, in a classification, upon the presence of the warning signal, a verification of the potential missile by temporal backtracking of a corresponding detection signal, by using a stored detector data in the recording device, wherein the evaluation unit is further configured to store the stored detector data of the recording device for at least one of a predetermined amount of time and time to delete the stored detector data after a predefined time, the predefined time depending on a flight duration to be expected until the potential missile reaches a target object, the target object being warned by the missile warner. ### Claim 10 A missile warner, comprising: a sensor for detecting a potential missile; a recording device for a continuously storing detector data of the sensor for a predefined amount of time; an evaluation unit, configured to receive, in a pre-classification, detector data from the sensor, to recognize within the detector data a detection signal of the potential missile and to compare the detection signal with a declaration threshold value, and to generate, after the detection signal has exceeded the declaration threshold value, a warning signal of the potential missile, and to perform, in a classification, upon the presence of the warning signal, a verification of the potential missile by temporal backtracking of a corresponding detection signal, by using a stored detector data in the recording device, wherein the evaluation unit is configured to only store detector data generated in the sensor which are above a threshold, and wherein the sensor is configured to perform a local or global segmentation in real-time, and to transmit only object data to the evaluation unit. ### Claim 11 (depends on 10) The missile warner according to claim 10, wherein the evaluation unit continuously compresses the detector data and to store the data as compressed image data.