A vehicle front structure of the present invention includes a hood ridge extended along a fore-and-aft direction of a vehicle in an upper edge portion of a vehicle front, a front side member extended along the fore-and-aft direction of the vehicle in a lower edge portion of the vehicle front, and a strut housing located between the hood ridge and the front side member. Further, the structure includes a hood ridge lower front portion composed in a manner that a rear edge portion thereof is connected to a front-side surface of the strut housing, and that an upper edge portion thereof and a lower edge portion thereof are connected to the hood ridge and the front side member, respectively. The hood ridge lower front portion has a hood ridge lower front outer member and a hood ridge lower front inner member. The hood ridge lower front inner member is provided to be spaced from the hood ridge lower front outer member at a predetermined interval and forms a closed cross section together with the hood ridge lower front outer member.

 
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> System and method for estimating quantization error in sampled data

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