A satellite-ground bistatic differential interferometric baseline coordinate and deformation measurement method
A satellite-ground dual-base, differential interference technology, applied in radio wave measurement systems, satellite radio beacon positioning systems, measurement devices, etc., can solve the problems of inconvenient wide application and high cost, achieve high-precision deformation estimation, eliminate common The effect of reducing the mode error and improving the signal-to-noise ratio
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Embodiment 1
[0035] Embodiment 1, as figure 1 As shown, S satellites are used to transmit signals to the reference station and the measuring station, and the coordinates of the measuring station are measured. The reference station is set as a radar to receive the direct wave signal from each navigation satellite; the measuring station is set as a transponder, The transponder receives the signal of each navigation satellite, and the signal is forwarded to the reference station as the signal of the measuring station; the space coordinate system is established with the reference station as the origin, such as figure 2 Shown is the flow of this method. This method includes two parts, which are the coordinate estimation process of the measuring station and the estimation process of the deformation variable. Steps 1 to 7 are the coordinate estimation process of the measuring station. image 3 , the specific steps of the method are as follows:
[0036] Step 1: Perform frequency mixing processin...
Embodiment 2
[0130] Embodiment 2, as figure 1 As shown, S satellites are used to transmit signals to the reference station and the measurement station to measure the deformation of the measurement station. The reference station is set as a radar to receive the direct wave signal from each navigation satellite; the measurement station is set as a transponder, and the transponder The signal of each navigation satellite is received, and the signal is forwarded to the reference station as the signal of the measuring station; the space coordinate system is established with the reference station as the origin, such as figure 2 Shown is the process flow of this method, which includes two parts, which are respectively the coordinate estimation process of the measuring station and the estimation process of the deformation amount. The measurement process of the deformation amount in this embodiment is as follows Figure 4 , wherein steps 1 to 4 are correspondingly equal to steps 1 to 4 in embodimen...
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