基于生成式对抗网络的目标扰动场实时解译与识别

Real-time interpretation and recognition of target disturbance field based on generative adversarial network

  • 摘要: 通过解译目标高速机动引发的大气环境扰动场,可以实现对高速目标的间接探测识别。然而,传统的目标扰动场解译算法存在特征提取难、处理时间长以及泛化能力差等局限。为此,提出了一种基于生成式对抗网络的实时目标扰动场解译算法FlowReconNet(flow field reconstruction network),同时对目标扰动场进行识别。所提算法首先通过生成器生成目标扰动场的解译图及分类结果;然后判别器验证其真实性,并与辅助增强器的参考特征向量进行比较;最后通过多值联合损失函数优化生成器。消融实验显示,所设计的生成式网络可有效提升目标扰动场的解译重建准确性。在超音速目标的多分辨率仿真扰动场图像中的实验结果表明:FlowReconNet在GPU环境下以67.33帧/s的速度解译 512\times 512 像素的目标扰动场图像,解译效果与传统算法相当,速度提升约33倍,平均峰值信噪比(peak signal-to-noise ratio,PSNR)为29.948 dB,分类准确率达96.701%。

     

    Abstract: High-speed targets can be indirectly detected and identified by analyzing the atmospheric disturbance field caused by their maneuvers. However, the traditional disturbance field interpretation algorithm for targets has limitations, such as challenging feature extraction, long processing time, and poor generalization ability. Therefore, a real-time algorithm, FlowReconNet (flow field reconstruction network), based on generative adversarial networks, is designed for interpreting the target disturbance field and identifying it simultaneously. Firstly, the proposed algorithm generates the interpretation map and classifies the target disturbance field using a generator. Then, the discriminator verifies the authenticity of the generated output and compares it with the reference feature vector from the auxiliary enhancer. Finally, the generator is optimized using a multi-value joint loss function. Ablation experiments show that the designed generative network can effectively improve the interpretation and reconstruction accuracy of the target disturbance field. The experimental results from multi-resolution simulated disturbance images of supersonic targets demonstrate that FlowReconNet decodes 512\times 512 pixel target disturbance field images at 67.33 frame/s under a GPU environment. The algorithm achieves comparable decoding performance to traditional methods, with a speed improvement of approximately 33 times, an average peak signal-to-noise ratio (PSNR) of 29.948 dB, and a classification accuracy of 96.701%.

     

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