JP5367861B2 - Ultra-wideband wireless communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultra-wideband wireless communication apparatus which can realize a short-range high-speed communication at a low cost by allowing the use of an ultrawide waveband about 10GHz with a simple configuration. <P>SOLUTION: An ultra-wideband wireless communication apparatus is provided, which includes an input-output processing unit 153 which is configured to operate with delayed from an input-output processing unit 152 by a predetermined time by making a clock 153a delayed from a clock 152a by a predetermined time; a bias means 154 which applies a fixed bias to a trigger signal 22 which is input from the input-output processing unit 153; and a comparator 155 which is configured to receive a trigger signal 21 from the input-output processing unit 152, and the biased trigger signal 22 from the bias means 154, and output predetermined signals only when the power of the trigger signal 21 is greater than the power of the trigger signal 22. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a technical field of an ultra-wideband wireless communication apparatus that performs short-range wireless communication using ultra-wideband.

  In recent years, as a new concept wireless communication technology, a UWB (Ultra Wide Band) wireless communication system, which is an ultra-wideband wireless system using a bandwidth of 500 MHz to several GHz, has attracted attention.

  UWB is an impulse radio system using an ultrashort pulse wave having a pulse width of about nanoseconds or less by utilizing a wide band. In a wireless communication system using pulses, the average transmission power decreases as the pulse width decreases, and the reach distance also decreases. For this reason, the narrower the pulse width with a wider band, the lower the possibility of interference with other wireless devices using the same frequency band, and the lower power consumption.

  UWB is a communication system suitable for short-distance communication because its output is extremely low, and is used for a wireless USB communication system (Patent Document 1). The purpose of wireless USB is to communicate at a very close distance of about 1 Gbps, and when the distance between devices is within 3 m by using a broadband of about 1 GHz, it is 480 Mbps equivalent to wired USB 2.0. High-speed communication is possible, and 110 Mbps can be secured even at a distance of 10 m.

JP 2006-186940 A

  However, the communication speed that can be realized by the communication method using the conventional UWB is at most about 1 Gbps, and in order to realize higher-speed data communication, as is clear from Shannon's theorem, the bandwidth to be used is There is a need to expand further. However, in order to further expand the band to realize an ultra-wide band of about 10 GHz, conventionally, it has been necessary to use optical impulse generation or use an expensive semiconductor material such as InP. Therefore, there has been a problem that a wireless communication device using an ultra-wide band of about 10 GHz cannot be realized at a low price.

  Accordingly, the present invention has been made to solve the above-described problem, and an ultra-wideband wireless capable of realizing short-distance high-speed communication at a low price by making it possible to use an ultra-wideband of about 10 GHz with a simple configuration. An object is to provide a communication device.

According to a first aspect of the ultra-wideband wireless communication apparatus of the present invention, an arithmetic control unit that outputs a trigger signal corresponding to a bit value of transmission data having a predetermined number of bits, and the trigger signal is input from the arithmetic control unit. A transmission signal generator for generating a transmission signal, a transmission antenna for transmitting the transmission signal, a reception antenna for receiving a predetermined reception wave, and a predetermined reception signal by inputting the reception wave received by the reception antenna A reception signal processing unit that detects a received signal and a reception data determination unit that receives a signal from the reception signal processing unit and determines reception data, wherein the transmission signal generation unit includes: An ultra-wideband impulse signal that is output for a predetermined time from the rising edge of the trigger signal is generated as the transmission signal.

In another aspect of the ultra-wideband wireless communication apparatus of the present invention, the arithmetic control unit includes two input / output processing units that output the trigger signals according to the transmission data, and one of the input / output processing units is from the other. is configured to output the trigger signal delayed by the predetermined time, the transmission signal generation unit includes a bias means for adding a constant bias from said one of input and output processing unit to input the trigger signal, the The trigger signal input from the other input / output processing unit is compared with the output of the bias unit, and the trigger signal input from the other input / output processing unit is greater than the output of the bias unit for the predetermined time. A comparator that outputs an ultra-wideband impulse signal is provided.

In another aspect of the ultra wideband wireless communication device of the present invention, the calculation control unit outputs, as the trigger signal, a positive signal generated according to the transmission data and a negative signal having a polarity opposite to the positive signal. A processing unit, wherein the transmission signal generation unit inputs a negative signal from the input / output processing unit and applies a constant bias, and a delay unit that delays an output of the bias unit by a predetermined delay time And a comparator that compares the positive signal with the output of the delay means and outputs the ultra-wideband impulse signal only for the predetermined time when the positive signal is larger than the output of the delay means. To do.

In another aspect of the ultra wideband wireless communication apparatus of the present invention, the delay time is substantially equal to a time obtained by adding the predetermined time to a pulse width of the trigger signal.

In another aspect of the ultra wideband wireless communication device of the present invention, the bias is determined so that a signal to which the bias is not added is larger than a signal to which the bias is added for the predetermined time at the rising time. And

  Another aspect of the ultra-wideband wireless communication apparatus of the present invention is characterized in that the ultra-wideband impulse signal has a wideband exceeding 1 GHz.

  As described above, according to the present invention, an ultra-wideband wireless communication device capable of realizing short-range high-speed communication of about several Gbps at a low price by generating an impulse using an ultra-wideband of about 10 GHz with a simple configuration. It becomes possible to provide. In addition, by reducing the power spectral density by increasing the bandwidth, it is possible to easily realize short-distance high-speed communication with reduced interference with other systems.

It is a block diagram which shows the structure of the ultra-wideband radio | wireless communication apparatus which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the frequency spectrum of the transmission signal produced | generated by a signal production | generation part. It is a figure which shows the structure of the reception data determination part of 1st Embodiment. It is a block diagram which shows the structure of the calculation control part and transmission signal generation part of 1st Embodiment. It is a figure which shows typically the trigger signal output from an input-output processing part. It is a figure which shows an example of the trigger signal input into a comparator. It is a block diagram which shows the structure of the calculation control part and transmission signal generation part of 2nd Embodiment. It is a figure which shows typically the trigger signal with which predetermined delay time was added by the delay circuit compared with the trigger signal which consists of positive signals. It is a block diagram which shows the structure of the calculation control part and transmission signal generation part of 3rd Embodiment. It is a figure which shows an example of the trigger signal output from an input-output processing part. It is a block diagram which shows the structure of the calculation control part and transmission signal generation part of 4th Embodiment. It is a figure which shows an example of the transmission bit sequence output from an input-output processing part. It is a figure which shows an example of the output of the multiplexer which added the output from an input-output processing part, and the output from a comparator.

  An ultra-wideband wireless communication apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. Each component having the same function is denoted by the same reference numeral for simplification of illustration and description.

  The ultra-wideband wireless communication apparatus of the present invention uses an impulse generated using an ultra-wideband of about 10 GHz as a communication signal, thereby enabling short-distance high-speed communication of about several Gbps. In addition, such an ultra-wideband impulse can be generated with a simple configuration.

  The configuration of the ultra wideband wireless communication apparatus according to the first embodiment of the present invention will be described with reference to the block diagram shown in FIG. The ultra-wideband wireless communication apparatus 100 according to the present embodiment creates a data input / output unit 101 that inputs transmission data and outputs reception data, and a trigger signal that requests a transmission signal composed of a predetermined impulse based on the transmission data. An arithmetic control unit 111 that receives the trigger signal from the arithmetic control unit 111 and generates a transmission signal composed of a wideband impulse, a transmission antenna 131 that transmits the transmission signal, and a predetermined received wave. A reception antenna 132 for reception, a reception signal processing unit 140 for detecting a reception wave, and a reception data determination unit 112 that receives reception waves from the reception signal processing unit 140 and determines reception data. .

  In this embodiment, the data input / output unit 101 is provided to input transmission data and output reception data. However, the calculation control unit 111 inputs transmission data from the outside, and sends the reception data to the outside. The output may be performed by the reception data determination unit 112. Alternatively, the received data may be output from the received data determination unit 112 to the calculation control unit 111 so that the calculation control unit 111 inputs / outputs transmission / reception data to / from the data input / output unit 101.

  Further, in the ultra-wideband wireless communication apparatus 100 shown in FIG. 1, the calculation control unit 111 and the reception data determination unit 112 are collectively configured as the communication data processing unit 110, but can be appropriately changed depending on the hardware configuration and the like.

  The signal generation unit 120 receives a trigger signal from the arithmetic control unit 111 and generates a predetermined impulse signal. The signal generation unit 120 generates a predetermined impulse signal, and a band-pass filter that shapes the impulse signal generated by the transmission signal generation unit 121 ( BPF) 122 and an amplifier 123 that amplifies the impulse signal shaped by the BPF 122.

  An example of the frequency spectrum of the transmission signal generated by the signal generation unit 120 is shown in FIG. The impulse signal generated by the transmission signal generator 121 is a baseband impulse signal having a wide spectrum of about 10 GHz, for example, as shown in FIG. The BPF 122 shapes the waveform of such an impulse signal as shown in FIG. In FIG. 2B, the low frequency component of the impulse signal generated by the transmission signal generation unit 121 is reduced. The impulse signal shaped as shown in FIG. 2B is amplified to a predetermined power level by the amplifier 123 and transmitted from the transmission antenna 131 as a transmission signal.

  Note that the signal generation unit 120 of the present embodiment generates a transmission signal using the impulse signal generated in the baseband. However, the signal generated by up-converting the impulse signal generated in the baseband to a predetermined high frequency band is used as the transmission signal. It can also be configured to be used. Even in this case, the band of the impulse signal is preferably about 10 GHz.

  Next, the received wave received by the receiving antenna 132 is input to the received signal processing unit 140, where the received wave is detected. The received wave input to the received signal processing unit 140 is first amplified by the amplifier 141 and then filtered to a predetermined band by the BPF 142. When the band of the transmission signal is about 10 GHz as shown in FIG. 2, the BPF 142 filters the received wave of about 10 GHz.

  Further, when an impulse signal generated in the baseband is up-converted with a predetermined high-frequency radio wave and transmitted, it is necessary to down-convert it to a predetermined frequency band or detect an envelope using a diode or the like. . The BPF 142 is set to filter the same frequency band as the impulse signal before up-conversion.

  The detector 143 receives the received wave filtered by the BPF 142 and detects the received wave. Each received wave detected here is output to the reception data determination unit 112 of the communication data processing unit 110, where a process for determining reception data is performed.

  The configuration of the reception data determination unit 112 is shown in FIG. The reception data determination unit 112 includes a correlation circuit 112a and a data conversion unit 112b. The reception wave input from the detection unit 143 is first subjected to a predetermined threshold determination by the correlation circuit 112a to detect an impulse. Is called.

  The correlation circuit 112 a includes a comparator 161 and a threshold setting unit 162, and the received wave input from the detection unit 143 and the threshold set by the threshold setting unit 162 are input to the comparator 161. The comparator 161 detects an impulse from the input received wave, compares the input signal with the threshold value input from the threshold value setting unit 162, and if the input signal exceeds the threshold value, the signal corresponding to '1' When the threshold value is not exceeded, a signal corresponding to “0” is output to the data conversion unit 112b.

  When the data conversion unit 112b receives a reception signal which is serial data having a predetermined number of bits from the comparator 161, the input / output processing unit 163 converts the received signal into parallel data. The data conversion unit 112b performs necessary processing on the parallel-converted data to convert it into reception data. Here, an example in which the 8B10B conversion unit 164 performs processing to convert data received at 10 bits into 8 bits. Show. This process is performed when the calculation control unit 111 performs 8B10B conversion on the transmission data. The processing performed by the 8B10B conversion unit 164 is processing for restoring received data by returning the data converted from 8 bits to 10 bits by the 8B10B conversion of the transmission unit back to 8 bits.

  The reception data restored by the 8B10B conversion unit 164 is converted again to serial data by the input / output processing unit 165 and output to the data input / output unit 101. In this embodiment, an example in which data conversion is performed by the 8B10B conversion unit 164 of the data conversion unit 112b has been described. However, when processing such as data conversion is not necessary for the reception signal output from the comparator 161, The data converter 112b may not be provided, and the data may be output directly from the comparator 161 to the data input / output unit 101 or the like.

  A serializer / deserializer (SERDES) can be used for the input / output processing unit 163 that converts serial data into parallel data and the input / output processing unit 165 that converts parallel data into serial data. SERDES can perform high-speed data transfer. For example, the data conversion unit 112b can be configured using an FPGA (Field Programmable Gate Array) equipped with SEDES.

  In the ultra-wideband wireless communication apparatus 100 of the present embodiment, when the transmission signal generation unit 121 inputs a trigger signal from the arithmetic control unit 111, an ultra-wideband impulse signal is generated using a high-frequency component at the rise of the trigger signal. Yes. The calculation control unit 111 and the transmission signal generation unit 121 of this embodiment configured to generate an ultra-wideband impulse signal using the rising edge of the trigger signal will be described with reference to FIG. FIG. 4 is a block diagram illustrating the configuration of the calculation control unit 111 and the transmission signal generation unit 121 of the present embodiment.

  In the arithmetic control unit 111, when transmission data that is serial data having a predetermined number of bits is input from the data input / output unit 101, the input / output processing unit 151 converts the transmission data into parallel data. And 153. The input / output processing units 152 and 153 are configured so that their operations are controlled by clocks 152a and 153a, respectively. When receiving the parallel-converted transmission data from the input / output processing unit 151, the input / output processing units 152 and 153 are serially converted to the respective data. A trigger signal is output according to the clock.

  In this embodiment, the clock 153a is delayed by a predetermined time from the clock 152a, so that the input / output processing unit 153 operates after a predetermined time from the input / output processing unit 152. As a result, even if the input / output processing units 152 and 153 simultaneously input transmission data from the input / output processing unit 151, the trigger signal output from the input / output processing unit 153 is the trigger output from the input / output processing unit 152. The output is always delayed by a predetermined time from the signal.

  Trigger signals output from the input / output processing units 152 and 153 are schematically shown in FIG. The figure shows that the trigger signal 22 output from the input / output processing unit 153 is output with a delay of 100 ps from the trigger signal 21 output from the input / output processing unit 152. This delay time is set approximately equal to the pulse width of the impulse used for the transmission signal.

  The two trigger signals 21 and 22 output from the input / output processing units 152 and 153 are both output to the transmission signal generating unit 121. The transmission signal generator 121 includes a bias unit 154 and a comparator 155. When the trigger signal 22 is input from the input / output processing unit 153, the bias unit 154 adds a certain bias to the trigger signal.

  The comparator 155 receives the trigger signal 21 from the input / output processing unit 152 and the trigger signal 22 to which a bias is added from the bias unit 154, and outputs a predetermined output only when the trigger signal 21 is larger than the trigger signal 22. Is configured to do. An example of the trigger signals 21 and 22 input to the comparator 155 is shown in FIG. Since a predetermined bias is added to the trigger signal 22 by the bias means 154, the trigger signal 22 is larger than the trigger signal 21 in most of the sections as shown in FIG. There is no output from 155.

  On the other hand, the trigger signal 21 is larger than the trigger signal 22 at the time point 30 when the trigger signal 21 rises, and the output from the comparator 155 is generated only during this time. As a result, an impulse as shown in FIG. 6B is generated. Thus, in the present embodiment, an impulse is generated using the rising edge of the trigger signal, and this is used as a transmission signal. The pulse width of the impulse output from the comparator 155 is substantially equal to the delay time 100 ps, which is the time difference between the clocks 152a and 153a, thereby generating a wide-band impulse having a bandwidth of about 10 GHz.

  In the ultra-wideband wireless communication apparatus 100 of the present embodiment, a wide-band impulse of about 10 GHz can be easily generated by the arithmetic control unit 111 and the transmission signal generation unit 121 having a simple configuration as shown in FIG. By using this as a transmission / reception signal, it is possible to realize short-distance high-speed communication of about several Gbps. Further, the delay time for determining the pulse width of the impulse is set by the time difference between the clocks 152a and 153a, and since this is performed digitally, a stable delay time can be realized.

  An ultra-wideband wireless communication apparatus according to the second embodiment of the present invention will be described below. In the second embodiment, a method for generating an impulse used for a transmission signal is different from that in the first embodiment. The configurations of the arithmetic control unit 211 and the transmission signal generation unit 221 of this embodiment will be described with reference to FIG. FIG. 7 is a block diagram illustrating the configuration of the calculation control unit 211 and the transmission signal generation unit 221 of the present embodiment.

  In the arithmetic control unit 211, when transmission data is input from the data input / output unit 101, the input / output processing unit 251 converts the transmission data into parallel data, and then supplies the parallel data to the input / output processing unit 252. When the input / output processing unit 252 receives the transmission data converted in parallel from the input / output processing unit 251, the input / output processing unit 252 performs serial conversion on the transmission data and outputs a trigger signal. In addition, the input / output processing unit 252 outputs a trigger signal. It is possible to output. That is, the input / output processing unit 252 can output two signals, a positive signal with a positive polarity and a negative signal with a negative polarity. Such functions of the input / output processing unit 252 can be realized by using SERDES having an output such as LVDS (Low Voltage Differential Signal).

  In the present embodiment, as a trigger signal for generating an impulse to be used for a transmission signal, the input / output processing unit 252 outputs two positive signals having opposite polarities and a symmetric positive signal and negative signal. The positive signal and the negative signal are simultaneously output according to the clock 252a and input to the transmission signal generation unit 221.

  The transmission signal generation unit 221 of this embodiment includes a bias unit 253, a delay circuit 254, and a comparator 255. The positive signal input from the input / output processing unit 252 is directly input to the comparator 255, and the negative signal is input to the bias unit 253. The bias unit 253 adds a predetermined bias to the input negative signal.

  The signal to which the bias is added by the bias means 253 is then input to the delay circuit 254, where a predetermined delay time is added. The signal to which the bias is added has a waveform that is symmetrical to the positive signal, and has a waveform that is shifted by the pulse width of the trigger signal. Therefore, it is necessary to set a time obtained by adding the pulse width of the trigger signal and the delay time for generating the impulse as the delay time added by the delay circuit 254.

  When the repetition frequency of the trigger signal of the input / output processing unit 252 is 1 GHz, the time of one pulse width is 500 ps, and when the delay time of 100 ps necessary for impulse generation is added to this, the delay time by the delay circuit 253 becomes 600 ps. . A trigger signal to which a predetermined delay time is added by the delay circuit 253 is schematically shown in FIG. 8 in comparison with a trigger signal composed of a positive signal. In the figure, a trigger signal composed of a positive signal is indicated by reference numeral 23, and a trigger signal to which a delay time is added is indicated by reference numeral 24. In the figure, reference numeral 24 'denotes a negative signal.

  The signal to which a predetermined delay time is added by the delay circuit 254 is input to the comparator 255 and compared with the positive signal. Then, output from the comparator 255 is performed only during a period in which the positive signal is larger than the signal input from the delay circuit 253. By setting the delay time as shown in FIG. 8, output is performed from the comparator 255 for a period of about 100 ps, and a broadband impulse of about 10 GHz is generated.

  In the present embodiment, since the trigger signal is output from only one input / output processing unit 252, the configuration of the ultra-wideband wireless communication apparatus of the present embodiment can be further simplified. Since the delay time becomes slightly longer, it is necessary to lengthen the delay line when realizing this using an analog delay line, for example.

  An ultra-wideband wireless communication apparatus according to the third embodiment of the present invention will be described below. Also in the third embodiment, the impulse used for the transmission signal is realized by a generation method different from the first embodiment and the second embodiment. The configuration of the arithmetic control unit 311 and the transmission signal generation unit 321 according to the present embodiment will be described with reference to FIG. FIG. 9 is a block diagram illustrating the configuration of the calculation control unit 311 and the transmission signal generation unit 321 according to the present embodiment.

  In the arithmetic control unit 311, when transmission data is input from the data input / output unit 101, the input / output processing unit 351 converts the transmission data into parallel data, and then supplies the parallel data to the input / output processing unit 352. When the input / output processing unit 352 receives the parallel-converted transmission data from the input / output processing unit 351, the input / output processing unit 352 serially converts the transmission data and outputs a trigger signal, but further increases the high-frequency component of the trigger signal and outputs the trigger signal. I am doing so.

  Such a function can be realized by using a SERDES pre-emphasis function when, for example, SERDES is used as the input / output processing unit 352. An example of the trigger signal output from the input / output processing unit 352 is shown in FIG. By increasing the high frequency component of the trigger signal, a high peak can appear at the rising edge of the trigger signal.

  The transmission signal generation unit 321 according to the present embodiment includes a threshold setting unit 353 and a comparator 354. The trigger signal input from the input / output processing unit 352 is input to the comparator 354 and compared with a predetermined threshold value (reference numeral 31 in FIG. 10) set by the threshold value setting unit 353. The comparator 354 is configured to output only during a period when the trigger signal is larger than the threshold set by the threshold setting unit 353. In the present embodiment, the threshold value 31 of the threshold setting unit 353 is set so that an impulse is generated only with a high peak that appears at the rising edge of the trigger signal, and the impulse is generated with a high-frequency component at the rising edge of the trigger signal. By doing so, the generation of a wide-band impulse is realized.

  In the present embodiment, since the input / output processing unit 352 outputs a trigger signal with an increased high frequency component, an impulse is output with the high frequency component at the rising edge of the trigger signal. The configuration of the ultra-wideband wireless communication apparatus can be simplified. Further, the pulse width of the generated impulse can be adjusted to some extent by simply adjusting the threshold value set by the threshold value setting unit 353.

  An ultra-wideband wireless communication apparatus according to the fourth embodiment of the present invention will be described below. Also in the fourth embodiment, the impulse used for the transmission signal is realized by a generation method different from any of the first to third embodiments. The configurations of the arithmetic control unit 411 and the transmission signal generation unit 421 of this embodiment will be described with reference to FIG. FIG. 11 is a block diagram illustrating the configuration of the calculation control unit 411 and the transmission signal generation unit 421 of the present embodiment.

  In the arithmetic control unit 411, when transmission data is input from the data input / output unit 101, the input / output processing unit 451 converts the transmission data into parallel data, and then supplies the parallel data to the input / output processing unit 452. At this time, processing such as 8B10B may be performed. In addition, the arithmetic control unit 411 includes a storage unit 453, which is the same as the first fixed value in which “1” and “0” are sequentially arranged by the same number of bits as the transmission data, and similarly “0” and “1”. Are stored in a second fixed value.

  In addition to the input / output processing unit 452, input / output processing units 454 and 455 are provided on the output side of the arithmetic control unit 411. The input / output processing unit 454 receives the first fixed value from the storage unit 453 again. The output processing unit 455 receives the second fixed value from the storage unit 453. The outputs of the input / output processing units 454 and 455 are input to the comparators 457 and 458, respectively, and compared with the threshold values set in the threshold value setting units 457a and 458a, so that impulses are generated from each comparator every other bit. ing. Here, the impulse is generated using the third embodiment of the present invention, but the impulse can also be generated using the first and second embodiments. In addition, when the impulses output from the comparators 457 and 458 are combined, an impulse is generated for each bit.

  The bit string shown in FIG. 12 from the input / output processing unit 452 and the outputs from the comparators 457 and 458 are input to the multiplexer 459 and added, whereby the output from the multiplexer 459 is as shown in FIG. . That is, the magnitude of the 1-bit impulse generated by the comparators 457 and 458 is further increased when a trigger corresponding to “1” is output from the input / output processing unit 452. By setting the threshold value set in the threshold value setting unit 456 a to the threshold value 32 shown in FIG. 13, an impulse train corresponding to transmission data can be output from the comparator 456.

  As described above, according to the present invention, it is possible to provide an ultra-wideband wireless communication apparatus that can realize short-range high-speed communication of about several Gbps at a low price by generating an impulse using an ultra-wideband of about 10 GHz with a simple configuration. It becomes possible. In the present invention, an impulse is generated by using the rising edge of the trigger signal, and this is used as a transmission signal. In addition, by reducing the power spectral density by increasing the bandwidth, it is possible to easily realize short-distance high-speed communication with reduced interference with other systems.

  Note that the description in the present embodiment shows an example of the ultra-wideband wireless communication apparatus according to the present invention, and the present invention is not limited to this. The detailed configuration, detailed operation, and the like of the ultra-wideband wireless communication device in the present embodiment can be changed as appropriate without departing from the spirit of the present invention.

100 Ultra Wideband Wireless Communication Device 101 Data Input / Output Unit 110 Communication Data Processing Units 111, 211, 311 and 411 Operation Control Unit 112 Received Data Determination Unit 120 Signal Generation Units 121, 221, 321 and 421 Transmission Signal Generation Units 122 and 142 BPF
123, 141 Amplifier 131 Transmit antenna 132 Receive antenna 140 Received signal processor 143 Detector 151, 152, 153, 163, 165, 251, 252, 351, 352, 451, 452, 454, 455 Input / output processor 164 8B10B conversion 154, 253 Biasing means 155, 161, 255, 354, 456, 457, 458 Comparator 162, 353 Threshold setting unit 453 Storage unit 254 Delay circuit 459 Multiplexer

Claims (3)

A calculation control unit that outputs a trigger signal corresponding to a bit value of transmission data having a predetermined number of bits, a transmission signal generation unit that receives the trigger signal from the calculation control unit and generates a transmission signal, and the transmission signal A transmission antenna that transmits a predetermined reception wave, a reception antenna that receives a predetermined reception wave, a reception signal processing unit that receives the reception wave received by the reception antenna and detects a predetermined reception signal, and a reception signal processing unit An ultra-wideband wireless communication apparatus comprising a received data determination unit that receives received signals and determines received data,
The arithmetic control unit includes an input / output processing unit that increases the high-frequency component and outputs the trigger signal according to the transmission data,
The transmission signal generation unit is configured to input the trigger signal from the input / output processing unit, and compare the output signal with a predetermined threshold value to output an ultra-wideband impulse signal as the transmission signal when the trigger signal is greater than the threshold value; A threshold setting unit for setting the threshold,
The ultra-wideband wireless communication apparatus , wherein the threshold setting unit sets the threshold so that the ultra-wideband impulse signal is output for a predetermined time . The super input / output processing unit is configured using a serializer / deserializer, and the high frequency component of the trigger signal is increased using pre-emphasis means of the serializer / deserializer. Broadband wireless communication device. The ultra-wideband wireless communication apparatus according to claim 1 or 2 , wherein the ultra-wideband impulse signal has a wideband exceeding 1 GHz.

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