Kabushiki Kaisha Toshiba

Shinkichi Nishimoto

Masakazu Wada

Yoshirou Aoki

Mitsuyoshi Shinonaga

Junichi Horikomi

A rectangular wave for determining a range of a weight function is transformed to frequency domain by an FFT or the like, and after being multiplied by a window function (BlackmanHarris window function, for example) generated on a frequency axis by a multiplier, the frequency domain is transformed again to the time domain by an IFFT or the like thereby to generate a weight function.

Weight function generating method, reference signal generating method, transmission signal generating apparatus, signal processing apparatus and antenna

A pulse compression processorcompressing a modulated pulse signal correlately received by a receiver, includes a coefficient calculatorcalculating a set of filtering coefficients for converting sampled output signal values outside a vicinity of main-lobe of a compressed pulse signal into zero as well as for minimizing S/N loss in a peak value of the main-lobe, and a pulse compression filtercompressing the modulated pulse signal based on the set of the filtering coefficients calculated by the coefficient calculator.

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Hachioji, Japan

Shinkichi Nishimoto