傅里叶望远术(FT)是一种主要针对远距离暗弱目标的高分辨率光学干涉成像技术。它利用多束空间距离不同、时间频率受调制的激光干涉照明目标，通过解调光强探测器接受反射的回波时序信号来提取目标的傅里叶频谱，并利用相位闭合技术消除光程差和大气湍流等造成的相位畸变。采用发散光干涉在实验室内实现了傅里叶望远术对一维和二维目标的重构。实验方案较好地模拟了外场“T”型阵列发射结构，同时还保证了光斑的有效重合，最大程度地利用了光斑能量，有利于提高信号的信噪比，有利于光束对目标的瞄准，对进一步避免大气湍流的影响具有一定指导意义。

Fourier telescopy (FT) is a high-resolution optical interference imaging method which is mainly used for distant and very dim objects. Being illuminated by several spatial diversed and frequency-encoded laser beams, object will reflect the light as a temporal series signal which contains the information of the target′s spatial spectrum. After the signal is demodulated, the target′s spectrum will be recovered with the help of the phase-closure algorithm by which the random atmospheric phase errors will be cancelled out, and then, the image can be reconstructed by inverse Fourier transform. An experimental scheme based on diverging light has been put forward to verify the feasibility of this imaging technology, and both of one- and two-dimensional objects have been reconstructed successfully in laboratory. Besides, several useful references for building field′s FT system can be offered by this scheme. Firstly, it simulates the T-shape configuration properly, which is helpful to study the field transmitter array while the field′s requirement is not mature. Secondly, the scheme is based on diverging light to illuminate the target, It not only approaches the practical situation, but also makes the laser faculae overlap together on target′s surface all the time which is good at improving the signal-to-noise ratio of the reflected signal because the energy of the light is used at utmost. And it will be beneficial to aim the target and to avoid the atmospheric turbulence in system design.