TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES
One or more embodiments of the present invention relates to the design an adaptive transmit non-periodic ON-OFF pulse width modulated (PWM) signal sequence over a radar dwell time that is matched to the target and clutter characteristics so as to maximize the target response adaptively. In this cont...
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| creator | PILLAI UNNIKRISHNA SREEDHARAN |
| description | One or more embodiments of the present invention relates to the design an adaptive transmit non-periodic ON-OFF pulse width modulated (PWM) signal sequence over a radar dwell time that is matched to the target and clutter characteristics so as to maximize the target response adaptively. In this context, in the first step, some optimality criterion such as maximizing the ratio of the target output signal power to the mean clutter power at the receiver input is used to design a pre-transmit waveform. In the second step, a Pulse Width Modulation method is used to convert the pre-transmit waveform so designed to a non-periodic ON-OFF pulse width modulated (PWM) waveform signal without destroying the target and clutter matching characteristics of the pre-transmit signal. This allows maximum response from the target and minimum response from the clutter and the environment when the target and its surroundings are interrogated with the non-periodic ON-OFF pulse width modulated (PWM) signal waveform. |
| format | Patent |
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In this context, in the first step, some optimality criterion such as maximizing the ratio of the target output signal power to the mean clutter power at the receiver input is used to design a pre-transmit waveform. In the second step, a Pulse Width Modulation method is used to convert the pre-transmit waveform so designed to a non-periodic ON-OFF pulse width modulated (PWM) waveform signal without destroying the target and clutter matching characteristics of the pre-transmit signal. 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In this context, in the first step, some optimality criterion such as maximizing the ratio of the target output signal power to the mean clutter power at the receiver input is used to design a pre-transmit waveform. In the second step, a Pulse Width Modulation method is used to convert the pre-transmit waveform so designed to a non-periodic ON-OFF pulse width modulated (PWM) waveform signal without destroying the target and clutter matching characteristics of the pre-transmit signal. This allows maximum response from the target and minimum response from the clutter and the environment when the target and its surroundings are interrogated with the non-periodic ON-OFF pulse width modulated (PWM) signal waveform.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAIcQxydw1RcPRzUXD2CQ0JcQ1ScHRxDAjxDHNV8PfT9XdzUwiJDHBVCAly9Av29QxRCAj1Cfb0c1cIdvZw9XUN5mFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8aHBRgaGBoZmJhYGZo6GxsSpAgBZnSuh</recordid><startdate>20100701</startdate><enddate>20100701</enddate><creator>PILLAI UNNIKRISHNA SREEDHARAN</creator><scope>EVB</scope></search><sort><creationdate>20100701</creationdate><title>TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES</title><author>PILLAI UNNIKRISHNA SREEDHARAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2010164806A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2010</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>PILLAI UNNIKRISHNA SREEDHARAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PILLAI UNNIKRISHNA SREEDHARAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES</title><date>2010-07-01</date><risdate>2010</risdate><abstract>One or more embodiments of the present invention relates to the design an adaptive transmit non-periodic ON-OFF pulse width modulated (PWM) signal sequence over a radar dwell time that is matched to the target and clutter characteristics so as to maximize the target response adaptively. In this context, in the first step, some optimality criterion such as maximizing the ratio of the target output signal power to the mean clutter power at the receiver input is used to design a pre-transmit waveform. In the second step, a Pulse Width Modulation method is used to convert the pre-transmit waveform so designed to a non-periodic ON-OFF pulse width modulated (PWM) waveform signal without destroying the target and clutter matching characteristics of the pre-transmit signal. This allows maximum response from the target and minimum response from the clutter and the environment when the target and its surroundings are interrogated with the non-periodic ON-OFF pulse width modulated (PWM) signal waveform.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | TARGET AND CLUTTER ADAPTIVE ON-OFF TYPE TRANSMIT PULSING SCHEMES |
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