Abstract: A vehicle door panel shock absorber having a outer wall and first and second reinforcing wings each extending between two opposite ends which are unitary with the outer wall, the first and second reinforcing wings crossing themselves at a center inside the outer wall and being unitary with one another at this center.

Abstract: A vehicle door panel shock absorber having a outer outer wall and first and second reinforcing wings each extending between two opposite ends which are unitary with the outer wall, the first and second reinforcing wings crossing themselves at a center inside the outer wall and being unitary with one another at this center.

Abstract: A method for determining filter coefficients for a mismatched filter is disclosed. The method includes generating a code sequence having a code length, determining a length of the filter, and performing a modified least mean squares (LMS) algorithm. The length of the filter corresponds to coefficients of a transfer function of the filter, and the length of the filter is not equal to the code length. The filter coefficients are iteratively adjusted in the LMS algorithm until an error signal for each of the filter coefficients is below a threshold value.

Abstract: A signal processing method includes transforming a received NLFM waveform from a first domain to a second domain, multiplying the transform of the received NLFM waveform with a complex conjugate of a low-pass filtered and transformed reference signal, and inverse transforming a product of the multiplication from the second domain to the first domain.

Abstract: A method includes correlating a plurality of samples of a waveform into a correlation domain to provide a mainlobe defined by a first subset of a plurality of pulse-compressed samples and a plurality of sidelobes defined by a second subset of the plurality of pulse-compressed samples. A weight is calculated for at least one of the pulse-compressed samples, and one of a plurality of SVA filter values is selected to apply to the at least one pulse-compressed sample based on the calculated weight of the at least one pulse-compressed sample. The SVA filter values include one, one minus a quotient of one-half divided by the calculated weight of the at least one sample, and a scale factor having a value greater than zero and less than or equal to one. The selected SVA filter values are applied to the at least one pulse-compressed sample.

Abstract: As automotive vehicle frame can be strengthened by reinforcing the tubular frame elements that form the side door openings. A three dimensional core element and rigid foam can be incorporated into each tubular frame element to achieve a significant increase in the frame bending strength, without adding appreciable weight to the vehicle frame.