Accounting for Acceleration—Signal Parameters Estimation Performance Limits in High Dynamics Applications

McPhee, Hamish; Ortega, Lorenzo; Vilà‐Valls, Jordi; Chaumette, Éric

doi:10.1109/taes.2022.3189611

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…This crucial insight is typically provided by the CRB. Over the past few decades, numerous CRB expressions have been developed for time-delay and Doppler estimation problems, encompassing both finite narrow-band and wideband signals [20], [29]- [38]. Furthermore, recent studies have explored scenarios in which the actual signal model at the receiver differs from the assumed one [39]- [42].…”

Section: Application To Time-delay and Dooplermentioning

confidence: 99%

On the efficiency of misspecified Gaussian inference in nonlinear regression: Application to time-delay and Doppler estimation

Fortunati,

Ortega

2024

Signal Processing

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Section: Application To Time-delay and Dooplermentioning

confidence: 99%

On the efficiency of misspecified Gaussian inference in nonlinear regression: Application to time-delay and Doppler estimation

Fortunati,

Ortega

2024

Signal Processing

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“…Because the aircraft's flight speed is very fast, it needs to bear a lot of vibration during operation, so it is particularly important to carry out dynamic analysis on the chassis. The dynamic analysis of the aircraft chassis is to use the computer to carry out the aircraft kinematics and dynamics simulation calculation, and take corresponding measures to correct the errors between the simulation results and the actual flight situation or design according to the conclusions drawn [14][15]. The dynamic simulation of aircraft chassis is to use computers to carry out three-dimensional solid modeling of aircraft, and in practical applications, certain constraints need to be imposed on it.…”

Section: Dynamic Analysis Of Aircraft Chassismentioning

confidence: 99%

Dynamic performance analysis of aircraft chassis based on 3D simulation technology

Song

Sun²

2023

Third International Conference on Mechanical Design and Simulation (MDS 2023)

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As an important part of the aircraft, the analysis of its dynamic performance is also extremely critical. As the core component of the aircraft, the performance of the aircraft chassis plays a vital role in the overall aircraft structure and flight safety. In order to provide scientific basis for the performance evaluation and design improvement of the aircraft chassis, this paper analyzes its dynamic performance and uses 3D simulation technology to carry out experiments on it. This paper mainly uses the experimental method and the investigation method to analyze the relevant data of the aircraft case. The experimental results show that due to the damping of the system, from 2 ms to 4 ms, when the equivalent voltage oscillates, the acceleration pulse remains at 0 value, and the amplitude decreases gradually with time, showing an attenuation trend.

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“…Consequently, multiple CRB expressions have emerged over recent decades for the timedelay and Doppler estimation problem. These expressions encompass a spectrum of signal types, ranging from finite narrow-band signals [2,[14][15][16][17][18][19][20][21][22] to finite wide-band signals [14,17,20,[23][24][25][26], and even infinite bandwidth signals [27]. All these previous investigations consider that the wave transmission process introduces an unknown phase element, due to the assumption of incomplete knowledge regarding the propagation medium, the characteristics of transmitter and/or receiver antennas (including the phase center and hyperfrequency electronics), and/or the radio-frequency equipment.…”

Section: Introductionmentioning

confidence: 99%

On the asymptotic performance of time-delay and Doppler estimation with a carrier modulated by a band-limited signal

Bernabeu,

Ortega,

Blais

et al. 2024

EURASIP J. Adv. Signal Process.

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Time-delay and Doppler estimation is crucial in various engineering fields, as estimating these parameters constitutes one of the key initial steps in the receiver’s operational sequence. Due to its importance, several expressions of the Cramér–Rao Bound (CRB) and Maximum Likelihood Estimation (MLE) have been derived over the years. Previous contributions started from the assumption that the transmission process introduces an unknown phase, which hindered the explicit consideration of the time-delay parameter in the carrier-phase component in theoretical derivations. However, this contribution takes into account this additional term under the assumption that such an unknown phase is inferred and compensated for. This new condition leads to the derivation of a novel MLE. Subsequently, a closed-form expression of the achievable Mean Squared Error (MSE) for the time-delay and Doppler parameters is provided for the asymptotic region, assuming the signal is band-limited. Both expressions are validated via Monte Carlo simulations. This analysis reveals five distinct regions of operation of the MLE, refining existing knowledge and providing valuable insights into time-delay estimation

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Accounting for Acceleration—Signal Parameters Estimation Performance Limits in High Dynamics Applications

Cited by 11 publications

References 31 publications

On the efficiency of misspecified Gaussian inference in nonlinear regression: Application to time-delay and Doppler estimation

On the efficiency of misspecified Gaussian inference in nonlinear regression: Application to time-delay and Doppler estimation

Dynamic performance analysis of aircraft chassis based on 3D simulation technology

On the asymptotic performance of time-delay and Doppler estimation with a carrier modulated by a band-limited signal

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