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SLAM经典入门教程

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Simultaneous Localization and

Mapping (SLAM)

Lecture 01

Introduction

SLAM Objective

? Place a robot in an unknown location in an unknown environment and

have the robot incrementally build a map of this environment while simultaneously using this map to compute vehicle location

? SLAM began with seminal paper by R. Smith, M. Self, and P.

Cheeseman in 1990

? A solution to SLAM has been seen as the “Holy Grail”

– Would enable robots to operate in an environment without a priori knowledge of obstacle locations

? Research over the last decade has shown that a solution is possible!!

The Localization Problem

Defined

? A map m of landmark locations is known a priori

? Take measurements of landmark location zk (i.e. distance and bearing)

? Determine vehicle location xk based on zk

– Need filter if sensor is noisy!

? ? ? ?

xk: location of vehicle at time k uk: a control vector applied at k-1 to drive the vehicle from xk-1 to xk zk: observation of a landmark taken at time k

Xk: history of states {x

1, x2, x3, …, xk} ?

Uk: history of control inputs {u

1, u2,

u3, …, uk}

? m: set of all landmarks

SLAM经典入门教程

SimultaneousLocalizationandMapping(SLAM)Lecture01IntroductionSLAMObjective?Placearobotinanunknownlocationinanunknownenvironmentandh
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