The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Takayuki Inaba - One of the best experts on this subject based on the ideXlab platform.
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Millimeter Wave Radar using Stepped Multiple Frequency Complementary Phase Code Modulation
2020Co-Authors: Masato Watanabe, Manabu Akita, Takayuki InabaAbstract:This research group has developed the millimeter wave radar using stepped Multiple-Frequency CPC (Complementary Phase Code) modulation. The millimeter wave radar system provides a high performance in spatial resolution in long range by narrowband receivers. In this paper, the authors explain the concept of the developed millimeter wave radar using stepped Multiple Frequency CPC modulation and then the configuration of the radar is illustrated. The results of fundamental experiments in anechoic chamber and field experiment, where the millimeter wave radar is equipped on the vehicle, in a Multiple target situation are also presented to demonstrate its performance.
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Development of millimeter wave radar using stepped Multiple Frequency Complementary Phase Code and concept of MIMO configuration
2017 IEEE Radar Conference (RadarConf), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Stepped Multiple Frequency Complementary Phase Code (CPC) modulation proposed by authors is a unique radar modulation/demodulation method that can achieve an extremely low range sidelobe by the short code length, a high range resolution equivalent to the transmission bandwidth by a narrower band receiver, and a long range detection performance. Authors also have developed 60GHz millimeter wave radar employing this modulation. In this paper, the experimental results using the radar system are at first presented to verify the radar performance described above. Then the concept of expansion to Multi Input Multi Output (MIMO) of stepped Multiple Frequency CPC is also described. The initial simulation results indicated the possibility that MIMO stepped Multiple Frequency CPC enable us to obtain not only a high range-velocity resolution but also a high angular resolution while preventing the deterioration of the characteristics in Doppler direction.
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Experimental Comparison of stepped Multiple Frequency CPC with Pulse compression
2017 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Authors have developed the stepped Multiple Frequency Complementary Phase Code (CPC) radar system. The unique radar modulation/demodulation method can achieve both a high range resolution and a long-range detection performance with a narrow band receiver compared with the transmission bandwidth. In this paper, the experimental verification to compare the detection range performances between Stepped Multiple Frequency CPC and Pulse compression was conducted. The experimental results indicated that the proposed modulation was 1.72 times superior to Pulse compression in the detection range performance on the condition where the transmission bandwidth, observation time, peak power, code length (the number of chips of switching codes), and the number of total pulses were set to be the same.
Manabu Akita - One of the best experts on this subject based on the ideXlab platform.
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Millimeter Wave Radar using Stepped Multiple Frequency Complementary Phase Code Modulation
2020Co-Authors: Masato Watanabe, Manabu Akita, Takayuki InabaAbstract:This research group has developed the millimeter wave radar using stepped Multiple-Frequency CPC (Complementary Phase Code) modulation. The millimeter wave radar system provides a high performance in spatial resolution in long range by narrowband receivers. In this paper, the authors explain the concept of the developed millimeter wave radar using stepped Multiple Frequency CPC modulation and then the configuration of the radar is illustrated. The results of fundamental experiments in anechoic chamber and field experiment, where the millimeter wave radar is equipped on the vehicle, in a Multiple target situation are also presented to demonstrate its performance.
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Development of millimeter wave radar using stepped Multiple Frequency Complementary Phase Code and concept of MIMO configuration
2017 IEEE Radar Conference (RadarConf), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Stepped Multiple Frequency Complementary Phase Code (CPC) modulation proposed by authors is a unique radar modulation/demodulation method that can achieve an extremely low range sidelobe by the short code length, a high range resolution equivalent to the transmission bandwidth by a narrower band receiver, and a long range detection performance. Authors also have developed 60GHz millimeter wave radar employing this modulation. In this paper, the experimental results using the radar system are at first presented to verify the radar performance described above. Then the concept of expansion to Multi Input Multi Output (MIMO) of stepped Multiple Frequency CPC is also described. The initial simulation results indicated the possibility that MIMO stepped Multiple Frequency CPC enable us to obtain not only a high range-velocity resolution but also a high angular resolution while preventing the deterioration of the characteristics in Doppler direction.
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Experimental Comparison of stepped Multiple Frequency CPC with Pulse compression
2017 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Authors have developed the stepped Multiple Frequency Complementary Phase Code (CPC) radar system. The unique radar modulation/demodulation method can achieve both a high range resolution and a long-range detection performance with a narrow band receiver compared with the transmission bandwidth. In this paper, the experimental verification to compare the detection range performances between Stepped Multiple Frequency CPC and Pulse compression was conducted. The experimental results indicated that the proposed modulation was 1.72 times superior to Pulse compression in the detection range performance on the condition where the transmission bandwidth, observation time, peak power, code length (the number of chips of switching codes), and the number of total pulses were set to be the same.
D.k. Pradhan - One of the best experts on this subject based on the ideXlab platform.
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Thermal-aware testing of network-on-chip using Multiple-Frequency clocking
24th IEEE VLSI Test Symposium, 2006Co-Authors: V. Iyengar, D.k. PradhanAbstract:Chip overheating due to excessive and unbalanced power dissipation has become a critical problem during test of complex core-based systems. In this paper, we address the overheating problem in network-on-chip systems by using on-chip Multiple-Frequency clocking. We control the core temperatures during test scheduling by varying the test clock Frequency assigned to each core, so that the power dissipation of each core during test can be adjusted individually and thermal balance is achieved. We present a heuristic where the optimization process can be integrated with test scheduling. Experimental results for NoC benchmarks show that the proposed method can guarantee thermal safety and yield better thermal balance
Masato Watanabe - One of the best experts on this subject based on the ideXlab platform.
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Millimeter Wave Radar using Stepped Multiple Frequency Complementary Phase Code Modulation
2020Co-Authors: Masato Watanabe, Manabu Akita, Takayuki InabaAbstract:This research group has developed the millimeter wave radar using stepped Multiple-Frequency CPC (Complementary Phase Code) modulation. The millimeter wave radar system provides a high performance in spatial resolution in long range by narrowband receivers. In this paper, the authors explain the concept of the developed millimeter wave radar using stepped Multiple Frequency CPC modulation and then the configuration of the radar is illustrated. The results of fundamental experiments in anechoic chamber and field experiment, where the millimeter wave radar is equipped on the vehicle, in a Multiple target situation are also presented to demonstrate its performance.
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Development of millimeter wave radar using stepped Multiple Frequency Complementary Phase Code and concept of MIMO configuration
2017 IEEE Radar Conference (RadarConf), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Stepped Multiple Frequency Complementary Phase Code (CPC) modulation proposed by authors is a unique radar modulation/demodulation method that can achieve an extremely low range sidelobe by the short code length, a high range resolution equivalent to the transmission bandwidth by a narrower band receiver, and a long range detection performance. Authors also have developed 60GHz millimeter wave radar employing this modulation. In this paper, the experimental results using the radar system are at first presented to verify the radar performance described above. Then the concept of expansion to Multi Input Multi Output (MIMO) of stepped Multiple Frequency CPC is also described. The initial simulation results indicated the possibility that MIMO stepped Multiple Frequency CPC enable us to obtain not only a high range-velocity resolution but also a high angular resolution while preventing the deterioration of the characteristics in Doppler direction.
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Experimental Comparison of stepped Multiple Frequency CPC with Pulse compression
2017 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM), 2017Co-Authors: Manabu Akita, Masato Watanabe, Takayuki InabaAbstract:Authors have developed the stepped Multiple Frequency Complementary Phase Code (CPC) radar system. The unique radar modulation/demodulation method can achieve both a high range resolution and a long-range detection performance with a narrow band receiver compared with the transmission bandwidth. In this paper, the experimental verification to compare the detection range performances between Stepped Multiple Frequency CPC and Pulse compression was conducted. The experimental results indicated that the proposed modulation was 1.72 times superior to Pulse compression in the detection range performance on the condition where the transmission bandwidth, observation time, peak power, code length (the number of chips of switching codes), and the number of total pulses were set to be the same.
Albert P. Pisano - One of the best experts on this subject based on the ideXlab platform.
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single chip Multiple Frequency aln mems filters based on contour mode piezoelectric resonators
IEEE\ ASME Journal of Microelectromechanical Systems, 2007Co-Authors: Gianluca Piazza, Philip J. Stephanou, Albert P. PisanoAbstract:This paper reports experimental results on a new class of single-chip Multiple-Frequency (up to 236 MHz) filters that are based on low motional resistance contour-mode aluminum nitride piezoelectric micromechanical resonators. Rectangular plates and rings are made out of an aluminum nitride layer sandwiched between a bottom platinum electrode and a top aluminum electrode. For the first time, these devices have been electrically cascaded to yield high performance, low insertion loss (as low as 4 dB at 93MHz), and large rejection (27 dB at 236 MHz) micromechanical bandpass filters. This novel technology could revolutionize wireless communication systems by allowing cofabrication of Multiple Frequency filters on the same chip, potentially reducing form factors and manufacturing costs. In addition, these filters require terminations (1 kOmega termination is used at 236 MHz) that can be realized with on-chip inductors and capacitors, enabling their direct interface with standard 50-Omega systems
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Single-chip Multiple-Frequency filters based on contour-mode aluminum nitride piezoelectric micromechanical resonators
The 13th International Conference on Solid-State Sensors Actuators and Microsystems 2005. Digest of Technical Papers. TRANSDUCERS '05., 2005Co-Authors: Gianluca Piazza, Philip J. Stephanou, M.b.j. Wijesundara, Albert P. PisanoAbstract:This paper reports experimental results on a new class of single-chip Multiple-Frequency (up to 236 MHz) filters that are based on low motional resistance contour-mode aluminum nitride piezoelectric micromechanical resonators. For the first time, aluminum nitride rectangular plates and rings have been electrically cascaded to yield high performance, low insertion loss (as low as 4dB at 93 MHz) micromechanical band pass filters. This novel technology could revolutionize wireless communication systems by allowing the co-fabrication of Multiple Frequency filters (IF and RF) on the same chip, therefore reducing form factors and manufacturing costs. In addition, these filters require terminations on the order of k/spl Omega/, thereby making possible their direct interface with standard 50 /spl Omega/ systems.
