Linear Chirp signal and (b) its frequency spectrum
The Discrete Linear Chirp Transform and its Applications
... a signal from the time to the frequency domain at intermediate domains by means of the fractional order of the transform that changes from −π/2 to ...ideal chirp signals in radar, the ability of the ...
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Ambiguity function and accuracy of the hyperbolic chirp: comparison with the linear chirp
... Gaussian chirp are significantly lower and that the Doppler cuts of the rectangular linear chirp and hyperbolic chirp are ...the linear chirp is much more Doppler tolerant than ...
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Non-Linear Chirp Spread Spectrum Communication Systems of Binary Orthogonal Keying Mode
... Abstract Chirp spread spectrum (CSS) is a suitable choice of modulation signals for wireless communications, due to its inherited advantages such as low transmission power, simplicity of ...
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SAR processing with non-linear FM chirp waveforms.
... energy spectrum for a pulse with index n to be band-limited and even about its center frequency f n ...the signal has bandwidth B n ...center frequency ( 1 − t & s, n ) f n ...
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Local Sparse Reconstructions of Doppler Frequency using Chirp Atoms
... the signal local frequency contents, induces competing requirements on the window ...use chirp dictionary for each window position to relax this adverse window length-sparsity ...local ...
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Time-frequency Signature Sparse Reconstruction using Chirp Dictionary
... 3. CHIRP DICTIONARY AND SINUSOID DICTIONARY Sinusoid dictionary has been examined in sparse signal reconstruction for IF estimation for chirp signals and MicroDoppler ...20 Its drawback lies ...
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Aspects of Radar Imaging Using Frequency-Stepped Chirp Signals
... bandwidth. Frequency- stepping processing is another kind of a very effective method to obtain high downrange profiles of targets such as air- craft, and its applicability has been well documented ...the ...
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Spectrum Sensing for Cognitive Radios with Transmission Statistics: Considering Linear Frequency Sweeping
... envelope-based detection method over the standard energy- based detection method [45, 48–50] mainly considering its simplicity in hardware implementation and computation. From the analytical framework we provide ...
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Chirp Signal for Wave Dispersion Relationships and Nonlinear Ultrasonic Damage Imaging.
... for Linear LDR The key idea for cross-correlation imaging is based on the concept that damage exists at the location where forward waves interact in phase with backward ...in frequency domain as cross ...
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Dual-Chirp Arbitrary Microwave Waveform Generation by Using a Dual Parallel Mach-Zehnder Modulator Feeding with RF Chirp Signal
... Power spectrum is almost the same even increasing the chirp rate with the same center frequency of 6 ...and its spectrum is seen in frequency span 0 to 12 GHz ...microwave ...
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Time-Frequency Signal Synthesis and Its Application in Multimedia Watermark Detection
... of chirp signals in the presence of high noise level and other signals has attracted much attention in many re- cent research ...for linear chirp detection is the Hough- Radon transform (HRT) ...of ...
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A multiband RF signal sampling frequency selection method based on cylindrical surface spectrum analysis
... 6. Its first extreme point appears when x = 0.25, and its corresponding sampling frequency is ...Nyquist frequency under the literal ...and its cor- responding sampling frequency ...
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Investigation of Non-linear Chirp Coding for Improved Second Harmonic Pulse Compression
... The signal-to-noise ratio of the SHC of NLFM was improved by up to ...LFM signal having the same energy ...NLFM chirp under a frequency dependent attenuation of ...
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TOA estimation of chirp signal in dense multipath environment for low-cost acoustic ranging
... obvious frequency shift of the received signals even at a slow walking speed, due to the low speed of sound ...sampling frequency offset, and Doppler Effect severely degrade the TOA estimation and pose ...
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II. ANALYTICAL SIGNAL AND INSTANTANEOUS FREQUENCY
... opposite frequency: more "a" is weak less, the wavelet analyzing is wide temporally, and therefore more the centre frequency of its spectrum is ...
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Extraction of the pulse width and pulse repetition period of linear FM radar signal using time-frequency analysis
... is linear frequency modulation (LFM) in the field of electronic intelligence ...LFM signal using instantaneous ...the signal by multiplication with its ...various signal-to-noise ...
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On maximal (k, b)-linear-free sets of integers and its spectrum *
... Department of Mathematics South China Normal University Guangzhou, 510631, P.R.. Naturally the concept of multiple-free can be generalized to multiple and translat- ion-free, or lin[r] ...
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Probability inequality concerning a chirp type signal
... 1 Introduction In [] Whittle () considered the problem of estimating the parameters of a sine wave: X t = A cos ωt + B sin ωt + t , where X t ’s are the observations and t ’s are independent, identically ...
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THE problem of estimating a signal from its linear measurements
... known signal. We explicitly study three signal models: Gaussian, Bernoulli-Gaussian and least-favorable distributions in both the real and complex ...the signal vari- ance and σ 0 2 is the noise base ...
5Ghz Chirp Signal Generator for Broadband FMCW Radar Applications
... high frequency output (of more than 2 ...high frequency waveform patterns using Xilinx FPGAs and AD9164, with the minimum of ...high frequency FMCW radar chirps and simulating target responses ...
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