1. A method of determining candidate white space channels for use by a white space device (WSD), the method comprising: obtaining sensing results from the WSD, the sensing results including information regarding television (TV) channel signals detected by the WSD without a location determination provided by the WSD; determining one or more coarse high probability geographic areas (HPAs) in which the WSD has a high probability of being disposed in based upon at least a portion of the sensing results, wherein each HPA of the one or more coarse HPAs correspond to a respective geographic area comprising a plurality of locations at which the WSD may be located; calculating probabilities with respect to the WSD being disposed at a plurality of particular locations within the determined one or more coarse HPAs using at least an additional portion of the sensing results to thereby provide one or more refined HPAs having unlikely locations for the WSD filtered from the determined one or more coarse HPAs; calculating availability probabilities for TV white space channels of unused TV channels within the one or more refined HPAs based upon an availability probability function summing the probabilities with respect to the WSD being disposed at particular locations within the one or more refined HPAs corresponding to respective ones of a plurality of subdivisions of the one or more refined HPAs for which information regarding availability of the TV white space channels within the plurality of subdivisions of the one or more refined HPAs indicates a particular white space channel is available, wherein an availability probability of the availability probabilities for a respective TV white space channel provides a probability the respective TV white space channel is an available white space channel for the WSD and will not interfere with incumbent users; and selecting one or more TV white space channels having highest availability probabilities as the candidate white space channels for use by the WSD.