Chirplet signal design by FPGA
نویسندگان
چکیده
The ever-expanding growth of the electronics and communications industries present new challenges for researchers. One these is generation required bandwidth signal over a specific time frame that used in variety contexts, particularly radar systems. To improve range resolution along with better SNR, it necessary to reduce increase peak power. There are some restrictions narrowband signals like power limitation, pulse shaping, production unwanted harmonics. So as solution compression techniques suggested. Pulse process modulating transmitted achieve wideband then at receiver, received correlates representations data. Chirp most common compression. chirp produced using linear frequency modulation. In this study, we attempted add an amplitude modulation evaluate its performance by implementation on FPGA. outcome called chirplet simulation will show enhance target detection image quality imaging radars SAR.
منابع مشابه
Adaptive chirplet based signal approximation
The chirp function is one of the most fundamental functions in nature. Many natural events can be roughly approximated by a group of chirp functions. In this paper, we present a practical adaptive chirplet based signal approximation algorithm. Unlike the other chirplet decompositions known so far, the elementary chirplet functions employed in this algorithm are adaptive. Therefore, the resultin...
متن کاملSecure FPGA Design by Filling Unused Spaces
Nowadays there are different kinds of attacks on Field Programmable Gate Array (FPGA). As FPGAs are used in many different applications, its security becomes an important concern, especially in Internet of Things (IoT) applications. Hardware Trojan Horse (HTH) insertion is one of the major security threats that can be implemented in unused space of the FPGA. This unused space is unavoidable to ...
متن کاملFractional Fourier Transform for Ultrasonic Chirplet Signal Decomposition
A fractional fourier transform (FrFT) based chirplet signal decomposition (FrFT-CSD) algorithm is proposed to analyze ultrasonic signals for NDE applications. Particularly, this method is utilized to isolate dominant chirplet echoes for successive steps in signal decomposition and parameter estimation. FrFT rotates the signal with an optimal transform order. The search of optimal transform orde...
متن کاملDesign and Implementation of Fpga Based Signal Processing Card
This paper describes the design of FPGA based signal processing card. An on board real time digital signal processing system is designed using FPGA. The platform can decode process of various kinds of digital and analog signals simultaneously. The design trend in this card is towards small size, high integration and fast real time processing. For the optimum performance a 16 bit 1 MSPS ADC is u...
متن کاملFPGA design considerations for non-orthogonal FDM signal detection
A fundamental resource in all communication systems and especially in wireless networks which comes at a premium is capacity. While there is a myriad of external factors influencing system capacity, one of the key issues is spectrum availability. Researchers around the globe are therefore constantly trying to invent novel spectrally efficient techniques to improve bandwidth efficiency. SEFDM is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Electrical and Computer Engineering
سال: 2021
ISSN: ['2088-8708']
DOI: https://doi.org/10.11591/ijece.v11i3.pp2120-2127