A low-noise MEMS accelerometer for unattended ground sensor applications

Speller, Kevin E.; Yu, Duli

doi:10.1117/12.540337

Cited by 28 publications

(15 citation statements)

References 1 publication

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“…Optical system on the battlefield, and other perfect performance parameters of the MEMS accelerometer that are important to application situations such as small size, light weight, good shock survivability, low noise floor and distortion, and high cross-axis rejection. From some experiments, we believe vibration signals of moving heavy vehicles can cause enough output from seismic sensors [6] .…”

Section: Magnetic and Seismic Sensorsmentioning

confidence: 99%

Accurate positioning based on acoustic and optical sensors

Kerong

Deng

Guo

2009

2009 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications

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Unattended laser target designator (ULTD) was designed to partly take the place of conventional LTDs for accurate positioning and laser marking. Analyzed the precision, accuracy and errors of acoustic sensor array, the requirements of laser generator, and the technology of image analysis and tracking, the major system modules were determined. The target's classification, velocity and position can be measured by sensors, and then coded laser beam will be emitted intelligently to mark the excellent position at the excellent time. The conclusion shows that, ULTD can not only avoid security threats, be deployed massively, and accomplish battle damage assessment (BDA), but also be fit for information-based warfare.

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Section: Magnetic and Seismic Sensorsmentioning

confidence: 99%

Accurate positioning based on acoustic and optical sensors

Kerong

Deng

Guo

2009

2009 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications

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“…Seismic sensor can record the acceleration of vibration signal [3] , that is related to vehicle type, distance, speed and mobile style. Therefore, target identification and state can be obtained.…”

Section: A Magnetic and Seismic Sensorsmentioning

confidence: 99%

“…The angle T from positive X axis to 1 OP is defined to be azimuth angle of target, and angle M from positive Z axis to OP is defined to be pitch angle of target. The time delay between sensor 0 S and S ( 1,2,3,4) i i is expressed to be 0i t , accordingly the distance difference between target to 0 S and target to S ( 1,2,3,4) i i is expressed to be 0i d . Then…”

Section: B Acoustic Sensor Arraymentioning

confidence: 99%

Design of an unattended laser-target designator based on multi-sensor

Kerong

Deng

Guo

2009

2009 9th International Conference on Electronic Measurement &Amp; Instruments

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As an available precision strike approach, semi-active laser (SAL) guided munitions have ability to attack pinpoint targets accurately in coordination with laser-target designator (LTD). This method can achieve precise strike, but the problems are obviously as well. Not only the carriers of LTD (aircraft or soldiers) face with security threats, but also the capability of multi-target handling is limited. A novel device, unattended laser-target designator (ULTD) was designed and analyzed. It can replace conventional method by acoustic, seismic, magnetic and imaging sensors; of course, a laser generator is absolutely necessary. The target's identification,, velocity and location can be determined by multi-sensor, then appropriate laser beam will be emitted to mark the excellent position of target at an excellent time. This device can avoid loss of life, be deployed massively, and accomplish battle damage assessment (BDA), also it is fit for information-based warfare. To be a new concept, its demands, important modules, and application were discussed. Keywords -laser-target designator, unattended device, multi-sensor, precision location. I. CONCEPTNowadays semi-active laser (SAL) guided munitions are of prime importance to accomplish precision strike pinpoint targets, the man-in-the-loop mode is very useful to achieve target recognition, intelligent control, and battle damage assessment (BDA). Of course, its obvious shortcoming is laser-target designator (LTD) must be carried by platforms which are controlled by soldiers, that means we have to invade opponent fire range to mark our targets. A novel unattended laser-target designator (ULTD) was designed to solve this problem partly; and it is fit in with the foreseeable future information-based warfare. Pre-battle deployment can endue SAL guided munitions with fire-and-forget and stand off attack abilities. II. DEMANDSWith the development of components and parts, integrated circuit, new approaches and correlation techniques, precision strike weapons were improving rapidly in the past years. On one hand, it is an available method to damage pinpoint targets, hard targets and armored targets effectively; on the other hand, minimum collateral damage must be considered in earnest, especially in urban warfare, anti-terrorist war and asymmetric warfare situations, which may be the major patterns of battle in the future. A. TargetsThe conventional guided munitions isn't able to attain adequate accuracy and damage, they always cause serious additional damage to ordinary people. From the several anti-terrorist wars, underground caves, buildings in urban and moving vehicles was becoming the major targets; actually most of which were destroyed by precision guided munitions.At the same time, the opponents use a variety of means to protect high-value targets, including full spectrum obstruction, decoy target, underground command center, armored layer, etc. To follow the two factors mentioned before, the circular error probable (CEP) of modern precision munitions are requested to b...

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“…In [8] the force-feedback is active below the signal band of interest, hence leaving the sensor to operate in open-loop at the actual signal band. The high performance sensor of [9] clearly benefits from the possibility of using a sensitive sensor with a low resonance frequency, while the feedback increases the signal bandwidth up to the required value. However, very few details of the interface are presented.…”

Section: Introductionmentioning

confidence: 99%

High‐resolution continuous‐time interface for micromachined capacitive accelerometer

Aaltonen¹,

Rahikkala²,

Saukoski

et al. 2008

Circuit Theory & Apps

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SUMMARYA continuous-time accelerometer interface is feasible when high dynamic range together with wide signal band is required. In this paper, design of interface electronics for a capacitive sensor is presented. The interface design is focused on attaining resolutions up to 120 dB together with a signal bandwidth of 300 Hz. The essential circuit structures of the interface will be presented and analyzed in detail. Important sources of instabilities and issues that affect the dynamic properties of the sensor are discussed. Measured and simulated results of the closed-loop sensor will be provided to support the theory.

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A low-noise MEMS accelerometer for unattended ground sensor applications

Cited by 28 publications

References 1 publication

Accurate positioning based on acoustic and optical sensors

Accurate positioning based on acoustic and optical sensors

Design of an unattended laser-target designator based on multi-sensor

High‐resolution continuous‐time interface for micromachined capacitive accelerometer

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