公开(公告)号：US4034340A

公开(公告)日：1977-07-05

申请号：US693869

申请日：1976-06-08

申请人： Marcello Sant'Agostino

发明人： Marcello Sant'Agostino

IPC分类号： H04L1/02 ,  H04L1/24 ,  H04L25/04 ,  H04L25/06 ,  H03K13/32

CPC分类号： H04L25/065 ,  H04L1/02 ,  H04L1/241 ,  H04L25/063

摘要： At a receiver for binary or other digital message signals, the incoming signals are fed in parallel to a first decision network with a relatively low threshold and a second decision network with a relatively high threshold, the latter being adjustable. The output of the first decision network is delivered to a utilization circuit and in parallel therewith, together with the output of the second decision network, to a comparator emitting a pseudo-error pulse in response to any divergence in the two outputs. A counter stepped by the pseudo-error pulses, upon reaching a predetermined count, triggers a pulse generator producing a binary voltage v.sub.i whose mean value v.sub.u, obtained by integration, is a measure of signal degradation. Under the control of this mean value v.sub.u the threshold of the second decision network is automatically varied in the opposite sense to maintain a substantially constant pseudo-error rate. Another comparator, on detecting a lowering of this threshold beyond a permissible minimum, triggers an alarm circuit to bring about a manual or automatic switchover to another transmission channel. The voltage v.sub.u or its reciprocal, the variable threshold, may be continuously monitored by visual inspection and/or automatic recording.

摘要翻译： 在用于二进制或其他数字消息信号的接收机处，输入信号被并行地馈送到具有相对较低阈值的第一决策网络和具有相对较高阈值的第二决策网络，后者可调整。 第一决策网络的输出与第二决策网络的输出一起被传送到利用电路并且与第二决策网络的输出相对应于两个输出中的任何发散而发出伪错误脉冲的比较器。 通过伪误差脉冲步进的计数器在达到预定计数时触发产生二进制电压vi的脉冲发生器，其中通过积分获得的平均值vu是信号劣化的量度。 在该平均值vu的控制下，第二判定网络的阈值在相反的意义上自动变化，以维持基本上恒定的伪错误率。 另一个比较器在检测到该阈值的下降超过允许的最小值时触发报警电路，以便手动或自动切换到另一个传输通道。 可以通过目视检查和/或自动记录来连续监测电压vu或其倒数，可变阈值。

公开(公告)号：US5297168A

公开(公告)日：1994-03-22

申请号：US777399

申请日：1992-01-31

申请人： Marcello Sant'Agostino ,  Luigi Moreno ,  Renato D'Avella

发明人： Marcello Sant'Agostino ,  Luigi Moreno ,  Renato D'Avella

IPC分类号： H04B7/08

CPC分类号： H04B7/0857 ,  H04B7/0845

摘要： In a radio mobile system in which the radio signals are received by at least two antenna, the signals are filtered, weighted and then combined before being sent to an equalizer. The weighting coefficients are calculated as a function of signals corresponding to the power level received by each antenna and signals which is represent the quality of reception of each antenna. Furthermore, an equalizer control signal is generated from the combination of signals, weighted by the weighting coefficients, corresponding to the time response of the transmission channel to a single impulse.

摘要翻译： PCT No.PCT / EP90 / 00603 Sec。 371日期：1992年1月31日 102（e）日期1992年1月31日PCT提交1990年4月11日PCT公布。 出版物WO90 / 16118 日期为1990年12月27日。在通过至少两个天线接收无线电信号的无线电移动系统中，信号被滤波，加权，然后在发送到均衡器之前组合。 根据由每个天线接收到的功率电平的信号和表示每个天线的接收质量的信号计算加权系数。 此外，均衡器控制信号从对应于传输信道对单个脉冲的时间响应的加权系数加权的信号的组合产生。