用脉冲神经网络实现低功耗雷达通信调制识别,兼顾高精度与能效。
End-to-End Radar and Communication Modulation Recognition with Neuromorphic Computing

- 设计脉冲驱动的Transformer架构,融合自适应编码器和整数型漏电神经元。
- 在多种数据集上达到顶尖准确率,低信噪比下性能稳定,理论能耗降超90%。
- 可在KA200芯片上运行,功耗比3090显卡低5倍,适合边缘设备部署。
尽管基于深度学习的方法在自动调制识别(AMR)任务中可实现高精度,但其高计算开销难以平衡精度与功耗,限制了在资源受限平台的应用。近期,脉冲神经网络(SNN)在视觉和时序任务中展现出低功耗推理潜力。受此启发,本文提出EMRFormer,一种面向神经形态硬件的端到端脉冲神经网络架构,采用脉冲驱动的Transformer处理AMR任务。模型引入自适应脉冲编码器和整数型漏电积分-放电神经元,缓解有效信息退化,增强表示能力。通过将脉冲可分离卷积网络(SSCNN)融入脉冲驱动变压器(SpikeFormer),EMRFormer能有效从原始IQ波形中提取多尺度时序特征。在多个主流数据集上的实验表明,该模型在准确率上达到当前最优水平,且在低信噪比环境下保持强鲁棒性,理论能耗降低超过90%。进一步在KA200神经形态芯片上评估,结果表明其功耗相较3090显卡或Orin NX降低最多达5倍。本工作为资源受限设备上的AMR提供了可行路径。
原文摘要 · Abstract (English)
Although deep learning-based methods can achieve high accuracy in automatic modulation recognition (AMR) tasks, their high computational cost makes it difficult to strike a balance between accuracy and power consumption, thereby limiting their application on resource-constrained platforms. Neuromorphic architectures that perform spike-driven inference with modest energy budgets have recently been explored for vision and timeseries tasks. Motivated by these works, we propose EMRFormer, a novel end-to-end spiking nerural network (SNN) architecture that applies spike-driven transformer to the constraints of neuromorphic hardware for AMR. The model incorporates an adaptive spike encoder and Integer Leaky Integrate-and-Fire neurons to mitigate the degradation of effective information and enhance SNN representational capacity. By integrating spike-separable Convolution Neural Networks (SSCNN) into Spike-Driven Transformers (SpikeFormer), EMRFormer effectively extracts multi-scale temporal features from the raw IQ waveforms. We validate our approach across various mainstream datasets, the experimental results show that EMRFormer achieves state-of-the-art interms of accuracy, outperforming all the baselines. Furthermore, the model maintains strong performance in low signal-to-noise(SNR) environments and reduces theoretical energy consumption by over 90%. Finally, we evaluate our model on a KA200 neuromorphic chip. The results show that our model achieves up to 5 times reduction in power compared to running on a 3090 GPU or an Orin NX. This work demonstrates a promising pathway for AMR on resource-constrained devices.
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