Method and device for obtaining ultra-wideband channel model of discrete time
A discrete-time, channel model technology, applied in the field of ultra-wideband channel model acquisition, can solve the problems of not being direct and simple, unable to calculate the general formula of channel characteristics, and high computational complexity of discrete models, so as to achieve simple calculation and convenient channel characteristics, effects that facilitate simulation and calculation
Inactive Publication Date: 2012-09-05
南通市通州区新志浩实业有限公司
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Problems solved by technology
[0004] This method of obtaining a discretized model has high computational complexity, is not direct and simple enough, and cannot calculate the general formula of channel characteristics based on its model
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[0022] Embodiments of the present invention provide a method for obtaining a discrete-time ultra-wideband channel model, such as figure 1 shown, including the following steps:
[0023] Step s101 , acquiring discrete time intervals of clusters and discrete time intervals of paths in a signal.
[0024] Step s102 , according to the discrete time intervals of the clusters and the discrete time intervals of the paths, obtain the discrete time models of the amplitudes of the clusters and the amplitudes of the paths.
[0025] Step s103 , obtaining the shadow effect multiplicative factor of the influence of the shadow effect on the amplitude.
[0026] Step s104, according to the discrete-time model of the amplitude of the cluster and the amplitude of the diameter, and the shadow effect multiplicative factor, obtain the random variable of the signal amplitude within the discrete time interval of the cluster and within the discrete time interval of the diameter, as the super wideband ...
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The embodiment of the invention discloses a method and a device for obtaining ultra-wideband channel model of discrete time; wherein the method comprises the following steps of obtaining the discrete time interval of cluster and the discrete time interval of the pathway in a signal, obtaining the discrete time model of the cluster amplitude and pathway amplitude according to the discrete time interval of the cluster and the discrete time interval of the pathway, obtaining shadow effect multiplicative factor indicating the effect of the shadow effect on the amplitudes, obtaining the random variables of the signal amplitudes within the discrete time interval of the cluster and the discrete time interval of the pathway according to the discrete time model of the cluster amplitude and the pathway amplitude and the shadow effect multiplicative factor, and taking the random variables as the ultra-wideband channel mode of the discrete time. The embodiment of the invention realizes that the ultra-wideband channel model of the discrete time is obtained, has the advantages of simple calculation, convenience and practicability, and can directly calculates the general formula for relative channel characteristic, thus facilitating simulation and calculating the channel characteristic.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for acquiring a discrete-time ultra-wideband channel model. Background technique [0002] UWB (Ultra Wideband, ultra-wideband) communication technology is a new type of wireless communication technology, which has potential and extensive applications in high-speed indoor wireless communication, target positioning, ranging and wireless local area network. In order to calculate the channel capacity of UWB channels and fairly evaluate the performance of different UWB communication system proposals, establishing a recognized and accurate channel model has become the first thing that must be completed in the UWB standardization process. At present, according to a large number of UWB channel measurement data, a standard channel model is proposed for four typical environments of UWB indoor communication. The model is a continuous time model, and when a discre...
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IPC IPC(8): H04B17/00H04B1/7163H04B17/391
Inventor 王勇吴忠敏任晓涛
Owner 南通市通州区新志浩实业有限公司