This paper introduces a method to combine a number of narrow-bandwidth chirp pulses
stepped in frequency in order to achieve high range resolution in SAR images. The …

This paper demonstrates a method to produce high resolution SAR images using stepped-
frequencies. An advantage of the stepped-frequency approach is the reduction of the …

To achieve high range resolution using the stepped frequency chirp signal, two or more
chirp waveforms are sequentially transmitted and received at stepped carrier frequencies in …

In SAR imaging, range resolution is inversely proportional to the transmitted signal
bandwidth. Generally, for technological or cost reasons relative to radar hardware, the ability …

The high-resolution, frequency-stepped chirp signal can be applied to radar systems
employing narrow-bandwidth chirp pulses, in order to enhance the range resolution, and to …

A novel stepped frequency chirp waveform concept for increasing the range resolution of an
existing pulse compression radar is presented. The stepped frequency chirp technique is …

A novel frequency domain stepped frequency processing (FD-SFP) technique to obtain high
radar range resolution was developed by AJ Wilkinson in 1997. Range resolution is directly …

The stepped-frequency waveform is used to obtain large effective bandwidth for high range
resolution by transmitting the pulses with sequentially changing carrier frequency, so that is …

Image formation from squint mode synthetic aperture radar (SAR) is limited by image
degradations caused by neglecting the range-variant filtering required by secondary range …

An increasing amount of interest has been evolved in VHF/UHF SAR applications. These
radars have proven to be a very powerful method for underground and obscured object …