Executive Summary : | This proposal come under the concept of generation of high chirp rate dual chirp microwave waveform in Ku band using novel microwave photonic techniques for high performance radar application. The aim of the project is particularly based on development of a system and an innovative method to generate a dual chirped arbitrary microwave waveform in a Ku band. Application of this waveform is in modern radar system and satellite altimetry. These waveforms are programmable with respect to processing gain, which means it is possible to achieve determinable distances in ranging while the same time suppress adaptively disturbances and noise. These allow high resolution on time axis hence best suited for ranging. This chirp signal may also be applicable in medical ultrasound imaging, oceanography, and seismology. Higher the frequency band, bandwidth, and SNR of chirp signal, it makes the radar system more advanced and increases its compatibility. So, the project will be beneficial from day to day life to bigger aspect of life. It is a promising technology, and is worthwhile undertaking further investigations with the aim of increasing center frequency and bandwidth of dual chirp microwave waveform. Further analysis based on application and suitability of linear & nonlinear frequency modulated waveforms in modern radar system with high accuracy and improved SNR is the key future of this proposal. The other broader aspect of our proposed project is in terms of scientific research and development. The generated dual-chirp microwave waveform has certain advantage of center frequency in Ku-band (nowadays Ku-band are highly utilized for radar in high resolution mapping and satellite altimetry) when compared with the dual-chirp microwave waveform generated by DPMZM. Apart from dual linear chirping capability, a photonic technique will be implemented for generation of nonlinear chirp signal. Such kind of signal has not been reported through photonic technique. Our own developed computation method is proposed to be used for the performance computation of the overall model followed by experimental validation. This proposed project will be a boon for microwave & photonic people in terms of exploration & interest. Either advanced technology point of view or efficiency point of view this type of proposal must be launched and further research must be stressed on this concept. |