Based on CC1000 wireless sensor networks development platform, the odometer location error is corrected by measuring RSSI parameter and using maximum signal method.

在CC 1000无线传感器开发平台上，对节点RSSI参数进行测量并采用最大信号法定点修正定位误差。

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The transient electromagnetic method has a maximum depth because of continuous attenuation by transmission of electromagnetic signal in underground.

由于电磁信号在地下传播时不断衰减，瞬变电磁测深法有一个最大探测深度。

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A filtering method based on wavelet transform with local maximum value was discussed. The method could distinguish signal from the noise according to the different features of scale change.

小波变换局部极大值滤波方法利用信号与噪声不同的尺度变化特性来区分信号与噪声，将噪声从信号中分离出来。

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