Ambiguity resolution is essential for precise GPS diffe rential positioning. At the IAG General Meeting in Beijing 1993 [1], a new method for fast integer ambiguity estimation has been introduced. Some aspects of the theory have been reviewed at the DSNS 94 conference [2]. The LAMBDA-method, which stands for Least-squares AMBiguity Decorrelation Adj ustment, first decorrelates the ambiguities a...

Doppler effect plays a vital role and cannot be neglected for high velocity radars. When the velocity between the target and radar is very high compared to the velocity of transmitted waveform, then the received signal suffers Doppler distortion and will not match with the matched filter. Due to this, linear frequency modulation waveform suffers from a considerable signal loss. Use of hyperboli...

A radar scatterometer transmits a series of RF pulses and measures the total-power (energy) of the backscattered signal. Measurements of the backscattered energy from the ocean's surface can be used to infer the near-surface wind vector [7]. Accurate backscatter energy measurements are required to insure accurate wind estimates. Unfortunately, the signal measurement is noisy so a separate measu...

Abstract We empirically show that sample information not only moderates prospects’ outcome ambiguity but also decision makers’ revealed aversion of them. Since most natural prospects permit at least some inference, accounting for their degree improves prediction aversion. The special case full ambiguity, as in Ellsberg-type designs, is typically averted—yet many makers systematically like low d...

so far, various romanization schemes have been proposed for capturing persian text using latin alphabet. however, each have served a very specific and yet limited function. this paper proposes an extended romanization scheme that can facilitate a wide range of encoding needed in the field of natural language processing. the proposed scheme endeavors to preserve both orthographic and phonologica...

Transition from Fourier series to Fourier integrals is considered and error introduced by ordinary substitution of integration for summing is estimated. Ambiguity caused by transition from discrete function to continuous one is examined and conditions under which this ambiguity does not arise are suggested.

High-speed communications over the underwater acoustic channel are difficult due to time-varying multipath propagation and Doppler scattering. These phenomena, however, can be effectively used for joint multipath-Doppler diversity of received signals similarly to multipath diversity in a conventional Rake receiver. We present a new signal processing technique for data transmission over fast fad...

Recently, the ambiguity and deficiency of a given bijective mapping F over a finite abelian group G were introduced by Panario et al. [PSS+13, PSSW11] to measure the balancedness of the derivatives DaF (x) = F (x+a)−F (x) for all a ∈ G\{0}. Fundamental properties and cryptographic significance of these measures were further studied in [PSSW11, PSS+13]. In this paper, we extend the study of the ...

In certain signal processing problems, it is customary to estimate parameters in distorted signals by approximating what is termed a cross ambiguity function and estimating where it attains its maximum modulus. To unify and generalize these procedures, we consider a generalized form of the cross ambiguity function and give error bounds for estimating the parameters, showing that these bounds ar...