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    • 54. 发明授权
    • Signal processing system and method
    • 信号处理系统及方法
    • US07177363B2
    • 2007-02-13
    • US10507449
    • 2003-03-07
    • Paul FletcherMichael Dean
    • Paul FletcherMichael Dean
    • H04L27/28H04B7/10H04B1/10
    • H04B7/0848H01Q3/2605H04B7/0822
    • A phased array antenna that employs a switched least means squared architecture comprises plurality of receiving elements each having a respective weighting unit associated therewith, a summation unit, a processor, a plurality of sampling devise and a switching unit contains a switch arm having a contact at its free and, an ADC and a plurality of switch contacts corresponding to the ends of channels connected to the respective sampling devices. Each of a plurality of receiving elements is ampled by a respective sampling device prior to an incoming signal subjected to complex weighting by respective weighting units. Each of the signals sampled by the sampling device passes along respective channels to the switching unit. Thus, by switching between the contacts it is possible to vary which of the receiving elements is sampled. The processor calculates new complex weighting coefficients to be applied to the incoming signals by the weighting units using the sampled incoming signals in order to minimize a difference between an output from the summation unit y and a training signal d.
    • 采用切换最小均方的架构的相控阵天线包括多个接收元件,每个接收元件具有与之相关联的相应的加权单元,加法单元,处理器,多个采样设备和切换单元,其包含具有接触的开关臂 其空闲的ADC和多个开关触点对应于连接到相应采样装置的通道的端部。 多个接收元件中的每一个在通过各个加权单元进行复杂加权的输入信号之前由相应的采样设备放大。 由采样装置采样的每个信号都沿着相应的通道传送到切换单元。 因此,通过在触点之间切换,可以改变哪个接收元件被采样。 处理器使用采样的输入信号来计算由加权单元施加到输入信号的新的复加权系数,以便最小化来自求和单元y的输出与训练信号d之间的差。
    • 56. 发明申请
    • Gas turbine engine
    • 燃气轮机
    • US20050193714A1
    • 2005-09-08
    • US11123100
    • 2005-05-06
    • Philip WalshPaul Fletcher
    • Philip WalshPaul Fletcher
    • F02C3/30F02C7/10F02C7/143
    • F02C7/10F02C3/305F02C7/1435
    • A gas turbine engine (10) comprises a second compressor (14), a first compressor (16), a heat exchanger (18), a combustor (20), a first turbine (22), a second turbine (24) and a third turbine (26) arranged in flow series. The first turbine (22) is arranged to drive the first compressor (16). The second turbine (24) is arranged to drive the second compressor (14). There are means to inject liquid into the gas turbine engine (10). The means to inject liquid is arranged to inject liquid upstream (46) of the second compressor (14), within (48) the second compressor (14), between (50) the second compressor (14) and the first compressor (16), within (52) the first compressor (16), between (54) the first compressor (16) and the heat exchanger (18) or within (56) the combustor (20) to boost the power of the gas turbine engine (10). The means to inject liquid is arranged to inject liquid between (70) the combustor (20) and the first turbine (22), within (68) the first turbine (22), between (66) the first turbine (22) and the second turbine (24), within (64) the second turbine (24), between (62) the second turbine (24) and the third turbine (26), within (60) the third turbine (26) or between (72) the third turbine (26) and the heat exchanger (18) to reduce the power of the gas turbine engine (10).
    • 燃气涡轮发动机(10)包括第二压缩机(14),第一压缩机(16),热交换器(18),燃烧器(20),第一涡轮机(22),第二涡轮机(24)和 第三涡轮机(26)以流动系列布置。 第一涡轮(22)布置成驱动第一压缩机(16)。 第二涡轮(24)布置成驱动第二压缩机(14)。 存在将液体注入到燃气涡轮发动机(10)中的装置。 喷射液体的装置被布置成在第二压缩机(14)内(48),第二压缩机(14)和第一压缩机(16)的(50)之间,在第二压缩机(14)的上游(46) 在第一压缩机(16)(54),第一压缩机(16)和热交换器(18)之间(56)内的燃气轮机(10)内, )。 喷射液体的装置被布置成在(68)第一涡轮(22)内(66)第一涡轮机(22)和第二涡轮机(22)之间 第二涡轮机(24)内,第二涡轮机(24)内,第二涡轮机(24)和第三涡轮机(26)之间,在第(60) 第三涡轮机(26)和热交换器(18),以降低燃气涡轮发动机(10)的功率。
    • 57. 发明授权
    • Gas turbine engine
    • 燃气轮机
    • US06865891B2
    • 2005-03-15
    • US10431400
    • 2003-05-08
    • Philip P. WalshPaul Fletcher
    • Philip P. WalshPaul Fletcher
    • F01D17/16F02C3/10F02C3/113F02C3/13F02C3/30F02C6/18F02C7/042F02C7/08F02C3/04F02C7/36
    • F02C3/305F01D17/162F01D17/165F02C3/10F02C3/107F02C3/113F02C3/13F02C6/18F02C7/08Y02T50/671
    • A gas turbine engine (10) comprises a first compressor (16), a combustor (22) and a first turbine (24) arranged in flow series. The first turbine (24) is arranged to drive the first compressor (16). The first compressor (16) has variable inlet guide vanes (38) and the first turbine (24) has variable inlet guide vanes (42). A second compressor (48) is arranged upstream of the first compressor (16). An auxiliary intake (12) is arranged upstream of the first compressor (16) and downstream of the second compressor (48). A valve (54) is arranged upstream of the first compressor (16) and downstream of the second compressor (48). The valve (54) is movable between a first position in which the second compressor (48) supplies air to the first compressor (16) and a second position in which the second compressor (48) does not supply fluid to the second compressor (16) and the auxiliary intake (12) supplies fluid to the first compressor (16). A drive means (60,62,64,66) is arranged to selectively drive the second compressor (48).
    • 燃气涡轮发动机(10)包括以流动系列布置的第一压缩机(16),燃烧器(22)和第一涡轮机(24)。 第一涡轮(24)布置成驱动第一压缩机(16)。 第一压缩机(16)具有可变的入口引导叶片(38),并且第一涡轮机(24)具有可变的入口导向叶片(42)。 第二压缩机(48)布置在第一压缩机(16)的上游。 辅助进气口(12)设置在第一压缩机(16)的上游并且在第二压缩机(48)的下游。 阀(54)布置在第一压缩机(16)的上游和第二压缩机(48)的下游。 阀(54)能够在第二压缩机(48)向第一压缩机16供应空气的第一位置和第二压缩机48不向第二压缩机16供应流体的第二位置之间移动 )和辅助进气(12)向第一压缩机(16)供应流体。 驱动装置(60,66,66,66)被布置成选择性地驱动第二压缩机(48)。
    • 58. 发明授权
    • Gas turbine engine and a method of controlling a gas turbine engine
    • 燃气涡轮发动机和控制燃气涡轮发动机的方法
    • US06324828B1
    • 2001-12-04
    • US09573562
    • 2000-05-19
    • Jeffrey D. WillisJames MelvillePaul FletcherPhillip P. Walsh
    • Jeffrey D. WillisJames MelvillePaul FletcherPhillip P. Walsh
    • F02C920
    • F02C7/08F02C3/08F02C9/20
    • A gas turbine engine comprises a centrifugal compressor (4), an air diffuser (8), a heat exchanger (10), combustion apparatus (12), and first and second turbines (14,18). The combustion chamber assembly (22) comprises a primary, a secondary and a tertiary fuel and air mixing ducts (54,78,98). The compressor (4), diffuser (8), primary and secondary fuel and air mixing ducts (54,78) and turbines (14,18) all comprise means (6,8,16,20) for varying the mass flow area at their inlets such that in operation the amount of air mass through each component may be independently variable. Under part power conditions the mass flow is reduced and under full power conditions the mass flow is increased thereby maintaining a substantially constant gas cycle throughout the engine.
    • 燃气涡轮发动机包括离心式压缩机(4),空气扩散器(8),热交换器(10),燃烧装置(12)以及第一和第二涡轮机(14,18)。 燃烧室组件(22)包括初级,二级和三级燃料和空气混合管道(54,78,98)。 压缩机(4),扩散器(8),初级和次级燃料和空气混合管道(54,78)和涡轮机(14,18)都包括用于改变质量流量面积的装置(6,8,16,20) 它们的入口使得在操作中,通过每个部件的空气质量的量可以独立地变化。 在部分功率条件下,质量流量减小,并且在全功率条件下,质量流量增加,从而在整个发动机中保持基本恒定的气体循环。