Study in Brain System in controlling communication and JAR -Modeling on stimulation and behavior and its analysis

本研究探讨神经行为学中控制刺激与行为的系统。弱电鱼的通讯和干扰回避反应系统是神经行为学中著名的系统之一。研究者们从生物信号处理的角度对通信系统进行了研究，希望人工通信系统的研究能成为了解生物通信系统的又一线索。研究人员还研究了扩展频谱（SS）调制方案的基础研究及其在个人移动的通信服务中的应用。研究扩频通信。同步电路采用数字技术实现，结构复杂，功耗高。接收机已被研究，以实现相应的模拟MOS LSI配置所做的模拟数据处理减少字长。研究了匹配滤波器、采样保持、峰值检测等电路。相关系统由单个匹配滤波器组成，具有空间配置和时域控制。接收数据序列与候选PN码之间的相关运算。利用神经元MOS（vMOS）的多输入能力，简化了多数据的相关处理。作为这项研究的结果，一个配置具有降低的复杂性和降低的功耗已被发现可实现与所提出的方案。

Systems controlling stimulation and behavior in neuro-ethology are investigated in this study. The system of communication and Jamming avoidance responses (JAR) in weakly electric fish are one of famous system of neuro-ethological system. The researchers investigated the system of communication in a view point of biotical signal processing.It is expected that researches of artificial communication system should be another good cue to know the biotic communication systems. The researchers studied also basic investigation of Spread Spectral (SS) modulation scheme and application to personal mobile communication services.Simplified configurations of receiver have been. studied for Spread Spectrum communications. The synchronization circuit are implemented by digital technologies, which cause complex configurations and high power consumption. The receiver has been studied to be implemented by reduced word length corresponding to analog data processing done by analog MOS LSI configuration. The circuits of matched filters, sample/hold, peak detection including winner take all have been investigated. A correlation system is composed of a single matched filter with spatial allocation and time domain control. The correlation operation between received data sequences and a candidate PN code. The correlation of multiple data has been simplified and composed by the neuron MOS (vMOS) with the capability of multiple inputs. As a result of this study, a configuration with reduced complexity and reduced power consumption has been found realizable with the proposed scheme.