In pulsed radar and sonar signal processing, an ambiguity function is a two-dimensional function of propagation delay and Doppler frequency, (,). It represents the distortion of a returned pulse due to the receiver matched filter [1] (commonly, but not exclusively, used in pulse compression radar) of the return from a moving target.

The ambiguity in the style of writing a function should not be confused with a multivalued function, which can (and should) be defined in a deterministic and unambiguous way. Several special functions still do not have established notations.

The property (2) states that the function is maximum at the origin and is Transform (FFT). This will allow generation of ambiguity functions of advanced waveforms and signal processors. 4.1 AMBIGUITY FUNCTION DEVELOPMENT Since the ambiguity function can be thought of as the response of a signal processor to a received radar waveform, this is the approach we take in deriving the ambiguity function. Ambiguous functions are not really functions.

Ambiguity function

Ambiguity functions and their associated uncertainty functions, play a central role in echo-location as they relate signal characteristics to system and parameter estimation performance. Ambiguity is a type of meaning in which a phrase, statement or resolution is not explicitly defined, making several interpretations plausible. A common aspect of ambiguity is uncertainty. Ambiguity (pronounced am-big-YOU-it-tee) is the presence of two or more possible meanings in a single passage. The word comes from a Latin term which means, "wandering about" and the adjective form of the word is ambiguous. Other terms used for ambiguity are amphibologia, amphibolia, and semantic ambiguity. Ambiguity Function Computation for Pulse Frequency Radars (C) Tooring Analytics, 2015 A python module for computing the Ambiguity Function for analyzing radar signals, as outlined in 'Radar Signals' by Levanon & Mozeson.

The order of the objective function is defined as the highest number of arguments of any summand. To reduce ambiguity and noise in the solution, regularization

But it also provides more opportunities. The role of finance is changing Auditor objectivity as a function of auditor negotiation self-efficacy beliefs.

17 Sep 2014 Dealing with ambiguity is a competency quickly pushing its way up on the list of most wanted Engage some cross-functional collaboration.

GitHub is where people build software. More than 56 million people use GitHub to discover, fork, and contribute to over 100 million projects. Ambiguous Functions Ambiguous functions are not really functions. For each prescription of values to the arguments the ambiguous function has a collection of possible values.

" input. " output precession pressure principal. " axis of inertia. including the range equation, detection theory, ambiguity functions, antennas, modeling, ambiguity function generation and antenna pattern generation.
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Ambiguous functions are not really functions. For each prescription of values to the arguments the ambiguous function has a collection of possible values.

An example of an ambiguous function is less (n) defined for all positive integer values of n. Every non-negative integer less than n is a possible value of less (n). Ambiguity functions and their associated uncertainty functions, play a central role in echo-location as they relate signal characteristics to system and parameter estimation performance.
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Pulse compression, Ambiguity function - CW, pulse, chirp, FM-CW, noise and pseudo-noise - Windowing to improve impulse response

Ambiguity functions and their associated uncertainty functions, play a central role in echo-location as they relate signal characteristics to system and parameter estimation performance. Estimation performance as measured by the CR bound was shown in the previous chapter to be proportional to the resolution or “peakedness” of the ambiguity function (AF). The ambiguity function (AF) represents the time response of a filter matched to a given finite energy signal, when the signal is received with a delay τ and a Doppler shift ν relative to the nominal values (zeros) expected by the filter. The ambiguity function is defined by the complex envelope of the signal. There is more than one ambiguity function, this is the wide band single transmitter single receiver version. Most people think Doppler is just a frequency shift but it is actually a time dilation, although the frequency shift model is very often sufficient, particularly when looking at … ambiguity function as an intricate and ﬂexible tool in the design of waveforms to solve diverse problems in radar. In the process, substantial connections were … The use of ambiguity functions in radar signal design and analysis is very common.