Transceiver control method for multi-channel diversity signal
A technology for transmitting and receiving control and signals, applied in the field of transmitting and receiving control of multi-channel diversity signals, can solve the problems of disordered transmission links, difficult to determine the location where useful sampling signals are received and stored, and inability to determine transmitted signals, etc., so as to avoid link disorder. Effect
Active Publication Date: 2020-06-30
XIDIAN UNIV
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Problems solved by technology
In this way, when only one or a few specific Aic10s are used to sample useful signals, it is difficult to determine the location where the useful sampling signals are received and stored, that is, it is difficult to separate useful signals from useless signals
In addition, when the above two methods send digital signals from McBSP0, it is impossible to determine whether to start sending signals from the main Aic10, that is, there is also the problem of sending link disorder
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[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0037] An embodiment of the present invention provides a method for controlling transmission and reception of multi-channel diversity signals, such as figure 1 As shown, the method is:
[0038] Step 101: configuring the enhanced direct memory access controller of the DSP chip as a ping-pong mode;
[0039] Specifically, when moving multi-channel sampling signals from the receiving end of multi-channel buffer serial port 0, the source address is set to the address of the data receiving register of multi-channel buffer serial port 0, the destination address of the receiving ping parameter set is set...
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The invention discloses a transmit-receive control method of multipath diversity signals. The transmit-receive control method comprises the following steps: initializing a DSP hardware platform; performing automatic hardware identification and automatic software configuration by using a plug-and-play algorithm; separating the received multiple paths of sampling signals; respectively processing themultiple paths of signals obtained by sampling, taking out one path of signal, and modulating the signal by using carriers with different carrier frequencies to obtain a frequency diversity signal; finding a frame synchronization signal of the main AD / DA chip in a polling mode of a multi-channel buffer serial port; loading a signal needing to be sent out in the sending interrupt service subprogram; and judging whether the whole communication process is finished.
Description
technical field [0001] The invention belongs to the technical field of multi-channel signal control, and in particular relates to a method for controlling transmission and reception of multi-channel diversity signals. Background technique [0002] Short-wave communication usually uses the reflection of the ionosphere for long-distance communication. Due to the rapid changes in the ionosphere and the existence of multipath effects in the signal transmission process, the signal received by the receiving end will usually fluctuate, resulting in signal fading. Diversity technology can resist this kind of multipath fading very well. [0003] Diversity technology can be divided into space diversity, time diversity and frequency diversity. Among them, frequency diversity means that the signal to be transmitted is modulated by carriers of different carrier frequencies and then transmitted by different transmitters, and the receiving end uses different receivers to receive the signa...
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IPC IPC(8): H04L27/00H04L27/26
CPCH04L27/0014H04L27/2656
Inventor 马卓王双杜栓义江军
Owner XIDIAN UNIV